Heavy duty machined U-shaped frame for the roll assembly.
辊组件置于坚固的U型钢结构中。
A light handsaw with a slender blade stretched across a U-shaped frame, used for cutting designs in wood.
一种轻型手锯，其狭长刃片穿过一个U型框架，用来在木头上切割出图案。
A technological process for machining U-shaped frame is described. Machining process, rectification method and measures applied for the U-shaped are expatiated.
介绍了U形框架的加工工艺方法，详细阐述了U形框架的加工工艺步骤、校正方法和采取的措施。
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