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Dear Manh Quang Company,

I hope this email finds you well. I would like to place an order for two CNC milling machines (Model: 200 MC 6453, No. 67398), which I saw on your website. The machines will be used for cutting flat metal surfaces to improve the speed of our processes.

Please confirm the total cost of $50,489 per unit and arrange delivery by November 8. We will make the payment in cash upon delivery.

Kindly acknowledge this order and let me know if you require any further information.

Thank you for your assistance.

Best regards,

Long

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Accept: Reject

The design specifies a length of 50 ± 0.25 mm, meaning the acceptable range is 49.75 mm to 50.25 mm. The measured length is 50.40 mm, which exceeds this range.The design specifies a diameter of 6 ± 0.004 mm, giving an acceptable range of 5.996 mm to 6.004 mm. The measured diameter is 6.015 mm, which is outside the tolerance limit.The required hole depth is 10 ± 0.25 mm, making the tolerance range 9.75 mm to 10.25 mm. The measured depth is 10.12 mm

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Engineering materials are divided into two main groups: metals and non-metals. Metals include ferrous and non-ferrous types. Ferrous metals like cast iron and steel contain iron and are very strong. Non-ferrous metals such as copper, aluminum, and bronze do not contain iron, so they are lighter and more resistant to rust. Non-metals include ceramics and plastics. Ceramics are very hard and heat-resistant but can break easily, so they are used in high-temperature environments. Plastics are soft materials called polymers and are divided into thermoplastics and thermosets. Thermoplastics can be melted and reshaped, while thermosets keep their shape and cannot be changed once formed. There are also composite materials like fiberglass and carbon fiber, which are made by mixing different materials to make them stronger and more flexible.

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Hi Ling,

I’m writing to give you a quick update on our current design work. We’ve already finished the first designs and sketches, which helped us get a good start. Right now, we’re working on the feasibility study, and we’ll keep doing that for the rest of this week. After that, we still need to complete the detailed designs. These should be ready by the end of the month so we’re prepared for the meeting with the client. Let me know if you have any questions or need more information.

Best,
Long

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My robot is named “112.” It has a sleek humanoid shape with a metallic silver body and stands about 6 feet tall, weighing approximately 90 kilograms. The robot is equipped with a high-definition camera, motion sensors, mechanical arms with gripping hands, and wheels under its feet for smooth mobility. The camera and sensors help it detect obstacles and navigate environments, while the arms can lift, carry, or assemble objects. AegisBot can perform household chores, assist the elderly, and even provide basic security surveillance. It operates on a rechargeable battery that lasts up to 10 hours. With its advanced AI, it can learn tasks quickly. The estimated cost of AegisBot is around $15,000.

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Last year, I had a problem with the 3D printer at my school during a science project. It suddenly stopped mid-print and displayed an error message. This happened in the computer lab just two days before my project deadline. After checking the printer manual, I realized the problem was due to a clogged nozzle caused by low-quality filament. I carefully cleaned the nozzle using the recommended tools and replaced the filament with a better brand. After a few test prints, the machine worked smoothly again. I felt relieved and proud of myself for fixing it without needing outside help. It also taught me how important maintenance and proper materials are when using machines.

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My ideal job in the future is to become a mechanical engineer working in the automotive or aerospace industry. My work would involve designing, testing, and improving mechanical systems such as engines or machinery components. To qualify, I will need a bachelor's degree in mechanical engineering and strong skills in CAD software, problem-solving, and mathematics. Important qualities for this job include attention to detail, creativity, and the ability to work well in a team. I expect to receive a competitive salary, regular bonuses, and good working conditions with flexible hours. I also hope for opportunities to attend training programs and grow within the company.

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Hey Nam,

I hope you’re doing well! I wanted to update you on my university life. I’m majoring in  Mechanical Engineering Technology, and I’m loving it. I’ve learned so many valuable skills, like critical thinking, time management, and effective communication. The opportunities here are endless, from networking events to internships that could really help shape my career.

Of course, there have been challenges too, like balancing assignments and personal life. It’s definitely a learning curve, but I’m enjoying every bit of it!

Looking forward to catching up soon!

Take care,
Long