The case back was largely finished in machine polished stainless steel.
将案件发回，主要是在成品机抛光不锈钢。
This article mainly introduces the technique of having both sides of silicon wafers polished simultaneously on the polishing machine made domestically.
本文主要介绍在国产双面抛光机上一次同时完成的硅片双面抛光技术。
Yankee machine A paper-making machine characterized by having a single highly polished large diameter drying cylinder (called Yankee dryer). Use to produce machine galzed papers, creped paper, etc.
杨克造纸机这个造纸机的特点是用单一个特大直径，表面极度光滑的烘缸（称为杨克烘缸）。用制造光面纸，皱纸等。亦称单烘缸造纸机。
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