实验执行了在一个放电小孔机器DK730 （制造在中国，由作者修改）。

The experiments were performed on an electrical discharge small hole machine DK730 (made in China, modified by author).

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铜包钢接触线属于高速铁路建设急需的产品，该产品的制造在中国尚属起步阶段。

The copper clad steel contact wire used for high-speed railway of trains is developing in China.

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中国制造在凯悦。

Made in China at the Hyatt.

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So it covers a story in a beading factory in China.

它讲述了一个发生在中国的一个轮胎制造厂的故事。

拍摄纪录片 - SpeakingMax英语口语达人