Vacuum Coaters are used for the application of waterborne coatings on wood, metal and other substrates that have a uniform cross section.

真空涂布机被用于木头，金属和其他衬底(有统一的横切面)的水中涂料。涂层可同时用到所有的或选择项表面。

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A new critical moment formula of tapered beam is proposed, which is similar to the expression for beams with uniform cross-section.

提出了新的变截面梁临界弯矩计算式，其表达形式与等截面梁的公式相同，便于工程应用。

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The most important issue for the problem of uniform cross-section bar torsion is the calculation of shear stress on the boundary of cross-section, which is very difficult.

对等截面直杆扭转问题，横截面边界上的剪应力计算是件困难的事，也是很重要的研究课题。

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