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On October 5th, 2025, at around 10:30 a.m., an incident occurred in the mechanical workshop while I, Ly Trieu Bach, an apprentice mechanic, was polishing a metal part using the bench grinder. During the process, the safety guard of the grinder was found to be loose. When I switched on the machine, a small piece of metal suddenly broke off and struck my glove. Luckily, I was not injured, but the glove was slightly damaged.

After inspection, the main cause of the incident was identified as poor maintenance and a lack of pre-use checking. The safety guard had not been properly tightened after the previous cleaning session.

To prevent similar problems in the future, it is recommended that all workers carefully inspect equipment before operation and ensure all safety guards are secure. Additionally, regular maintenance and safety training should be conducted to raise awareness and ensure a safer working environment.

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The cordless drill is a highly versatile tool used for drilling holes and driving screws in wood, metal, and plastic. It has a really compact design to carry anywhere you need. It also comes with a rechargeable battery, variable speed control, and a set of two LED light. One of its biggest advantages is portability, as it doesn’t need a power cord, allowing users to work in various locations. It is also easy to handle, lightweight, and offers quick bit changes. However, to keep the machine remain lightweight its battery has a pretty low power, requiring frequent recharging, especially for heavy-duty tasks. Additionally, cordless drills may not provide as much power as corded versions. Overall, I find the cordless drill to be an excellent tool for DIY projects and your normal household uses, offering great convenience and efficiency despite minor limitations.

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In this workshop, one of the most used machines here is the lathe. It main features include a rotating spindle, a tool post for holding cutting tools, and a carriage that moves along the workpiece. The lathe is mostly used for cutting, drilling and sanding many types of materials like wood and metal. Operating a lathe involves several steps. First, secure the workpiece in the chuck and ensure it is tightly fastened. Second, select the appropriate cutting tool and adjust its position using the tool post. Next, set the spindle speed according to the material and desired finish. After that, engage the feed mechanism and move the cutting tool gradually toward the workpiece to shape it. Finally, after completing the operation, turn off the lathe and remove the workpiece carefully. And remember, always perform safety measures while working with the lathe for your safety.

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From:bach2138@gmail.com

To:Gaylord@gmail.com

Subject: Progress Update on New Design Project

Dear Mr Robinson,

I am writing to provide an update on the new design project. We have successfully completed the preliminary designs and sketches, which allowed us to establish a solid foundation for the next phases. Currently, we are working on the feasibility study, which we expect to complete by the end of this week. This study is crucial for assessing the practicality and potential adjustments needed before moving forward.

Looking ahead, we still need to focus on developing detailed designs. These will be finalized by the end of the month in preparation for our upcoming client meeting. I will keep you updated on any further progress.

Best regards,
PPP

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My name is Bui Hoang Bach, and I graduated with a Bachelor’s degree in Mechanical Engineering from Ha Noi University of Industry. I have over two years of experience working as a mechanical engineer, where I developed strong skills in designing, maintaining, and improving mechanical systems. I am particularly good at using AutoCAD and SolidWorks for creating accurate 3D models. I am impressed by your company’s reputation for innovation and high-quality engineering solutions. I am applying for the position of Mechanical Design Engineer because it matches my background and passion for mechanical design. In the next five years, I hope to become a senior engineer contributing to your company’s growth. I believe my technical knowledge, teamwork, and problem-solving ability make me a suitable candidate for this position.

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As a mechanical engineer, I can help protect the Earth both in my daily life and in my job. First of all, I try to save energy at home by turning off electrical devices when they are not needed. Second, I reduce plastic use by bringing reusable bags, bottles, and containers. Furthermore, I choose to walk, cycle, or use public transportation whenever possible to limit air pollution. Besides, in my workplace, I design and maintain machines that use energy more efficiently and create less waste. I also encourage recycling and the use of eco-friendly materials in production. Last but not least, I share knowledge about environmental protection with my colleagues and friends to inspire more positive actions. By doing these things, I hope to contribute to a cleaner and greener planet.

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One device that uses smart technology is the Smart Traffic Light System, which is widely applied in the field of transportation, especially in modern cities. This system uses sensors and cameras to monitor real-time traffic flow at intersections. It is operated through an automated control center, where artificial intelligence analyzes traffic data and adjusts the duration of red and green lights accordingly. For example, if a road has heavy traffic, the green light will stay longer to reduce congestion. This smart system brings many benefits to people, such as reducing waiting time, saving fuel, and lowering air pollution caused by idling vehicles. In addition, it helps emergency vehicles like ambulances and fire trucks move faster by giving them priority routes. Overall, the Smart Traffic Light System solves the problem of traffic jams and improves transportation efficiency, making city travel safer, faster, and more convenient.

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From:backbachpack@gmail.com

To: AdolfHitler123@gmail.com

Subject: Request for Advance Payment

Dear manager,

I am writing to request an advance payment due to a personal financial difficulty I am currently facing. My parents are currently in hospital due to an traffic accident a week ago, and I am in urgent need of support to cover some immediate expenses.

I would greatly appreciate it if I could receive $800 from my upcoming salary in advance to help manage this situation. I understand the company’s policies and will ensure the amount is deducted accordingly from future payments.

Please let me know if I can assist with any additional tasks or responsibilities during this time to express my gratitude for your support.

Thank you very much for considering my request. I truly appreciate your understanding.

Best regards, Bach

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Dear Mr Hiring Manager,

I am writing to apply for the position of Mechanical Engineer at your company. I graduated with a Bachelor’s degree in Mechanical Engineering from Hanoi University of Industry and have more than five years of experience in project design and maintenance.

During my previous work at ABC Engineering Co., I was responsible for developing machine parts, supervising installation, and ensuring quality standards. My strong analytical skills, teamwork spirit, and ability to solve technical problems under pressure make me confident in my ability to contribute to your engineering projects.

I am eager to join your team and apply my knowledge and experience to achieve outstanding results. I would appreciate the opportunity for an interview.

Sincerely,
Bach Bach Bach

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In the future, I would like to work as a Mechanical Engineer for a large and innovative company such as VinFast. The company offers many attractive benefits for its employees, including a competitive salary, health insurance, and opportunities for professional training. It also provides a safe and modern working environment that encourages creativity and teamwork. Besides these benefits, I would like to have flexible working hours and annual company trips to help employees relax and strengthen team spirit. I also hope the company will offer performance bonuses to motivate workers to do their best. Among all the benefits, I prefer opportunities for training and career development the most because they help me improve my skills, gain more experience, and achieve long-term success in my engineering career.

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One of the most useful devices that uses alternative energy is the solar water heater. It uses solar energy from the sun instead of electricity or gas to heat water. This type of energy is clean, renewable, and helps reduce greenhouse gas emissions. The system operates by using solar panels to absorb sunlight and convert it into heat. The heat is then transferred to the water stored in a tank, providing hot water for household or industrial use. I use this type of energy because it helps saving electricity bills and protects the environment at the same time. However, one problem of using solar energy is that it depends on weather conditions. On cloudy or rainy days, the device may not work effectively. Despite that, it remains a great solution for sustainable living

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In the future, I would like to live in a smart house located in a quiet suburb near a green forest and a clean river. My smart house will have advanced technologies such as voice-controlled lighting, automatic temperature control, and a smart security system with facial recognition. It will also include energy-saving solar panels and a robot assistant to help with cleaning and daily chores. The advantages of this smart house are convenience, high safety, and low energy consumption. I can control almost everything through my smartphone, even when I am away. However, the main disadvantage is that the cost of installation and maintenance may be quite high. I may live there with my family, so we can enjoy a comfortable and modern lifestyle together. I want to live in this smart house because it will provide a peaceful environment, reduce daily stress, and help me spend more quality time with the people I love.