In the course of mechanical element processing, the phenomenon of ambiguous rejects is analyzed and studied, the method of differentiating was put forward.
对机械零件加工过程中出现的假废品现象进行了分析和研究，并提出了判别的方法。
The invention comprises a non-rotating shaft for supporting a mechanical element of a roll segment in a continuous casting machine, having an essentially circular cross-section.
本发明包含用于支承连续浇铸机中的滚动段的机械元件的非旋转轴， 其具有基本为圆形的横截面。
The cold heading steel coil generally is low and medium carbon quality steel and alloy structure steel to manufacture various standard mechanical element and fastener by cold heading forming.
冷镦钢盘条一般为低、中碳优质碳素结构钢和优质合金结构钢，用来冷镦成型制造各种机械标准件和紧固件。
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