介绍了350 MW汽轮机低压外缸的制造过程，并对各个制造难点的解决作了详细的说明。

The article introduces the fabrication process of 350mw steam turbine outer cylinder, and describes the solution to every difficulty in detail.

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新式的四缸发动机要比老式的双杠发动机更重，因此如果你（或者之前的船主）更换了舷外发动机，你需要确定支撑臂仍然合适。

Newer four-strokes are heavier than older two-strokes, so if you (or the previous owner) replace the outboard, you need to make sure the bracket is still appropriate.

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本文主要介绍对已完成基本结构设计的气缸缸套精磨外圆夹具的有限元分析。

This text mainly introduces a way of Finite Element to analysis the fine whetting outside circle of urn about the tongs.

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