It is a challenge for conventional grinding techniques to fulfill the tolerance and surface roughness requirements when it comes to the production of high-quality components.
面对高品质零件的公差及表面粗糙度要求，采用传统的磨削加工存在一定的挑战。
Two types of rail grinding techniques which are widely employed abroad are comprehensively dealt with in this paper.
本文详细介绍了国外广泛采用的两类钢轨打磨方法。
The new rolling cutter for the recoiling vest-like plastic bag manufacturing device is developed, the structure, material, heat treatment process and edge grinding techniques are improved.
研制了卷装背心袋式塑料制袋机用新型滚刀，在刀具结构、材料、热处理工艺和刃磨技术等方面进行了全面的改进和更新。
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