试验的目的是为受电弓架结构优化设计和实际使用提供科学依据。

The objective is provided scientific basis for the optimization design of its structure and the practical application.

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弓架平板铸件（2）由弓架上臂（21）、弓架下臂（22）和弓架侧平板（28）铸 造成一体件。

The bow-shaped frame slab cast (2) is formed by integrally casting a bow-shaped frame upper arm (21), a bow-shaped frame lower arm (22) and a bow-shaped frame lateral slab (28).

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精密V型架也可作方箱使用，带有夹持弓架的V型架，可以把圆柱形工件牢固的夹持在V型架上，翻转到各个位置划线。

Precision V type rack can also be used with a gripping, party box bow frame, can put a V type cylindrical workpieces firm grip in V type shelf, flip to each position crossed.

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