机械工程用英语表达为 "mechanical engineering". 这个词来源于拉丁语 "mechanicus" 和 "ingeniare", 分别表示 "机械" 和 "工程师".

例句:

Mechanical engineering is a branch of engineering that focuses on the design and manufacturing of machinery.

The mechanical engineer is responsible for designing and testing the robot's mechanical components.

中文翻译:

机械工程是一个专注于机械设计和制造的工程学科。

机械工程师负责设计和测试机器人的机械部件。