air cleaning techniques 空气净化技术
gas cleaning techniques 烟气净化技术
laser cleaning techniques 激光清洁技术
coal cleaning techniques 洁净煤技术
Glass Cleaning Techniques 玻璃制品清洁技巧
rapid cleaning techniques 快速打扫的技巧
Dry cleaning techniques require perchloroethylene - known as perc - to remove dirt.
干洗技术要求氯乙烯-被称为p erc -以消除污物。
She DIYs her kids' gorgeousclothes, bakes amazing cakes, and uses eco-friendly home-cleaning techniques.
她自己缝制孩子们可爱的衣服、烘烤美味的蛋糕，并用无污染的技巧打扫房间。
Acid cleaning techniques and improved processes were carried out and the defect quantity was decreased step by step.
最后采取了盐酸清洗工艺和改进制备工艺等措施，逐步降低了多腔诱导透射滤光片的缺陷数量。
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