I prefer to sit (ie in a railway carriage) facing the engine.

我喜欢面朝机车坐(在火车车厢里)。

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Install the new upper rear bearing oil seal with the white paint facing towards the rear of the engine.

安装新的上后轴承油封，使白漆面向引擎后部。

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Working principle of the tracer fixtures used for profile facing curved axial grooves on the engine lathe is described.

介绍在普通车床上车削端面轴向曲线环槽靠模夹具的工作原理。

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