contamination seal是什么意思_contamination seal的中文翻译

防污染密封

contamination───n.污染，玷污；污染物

seal───vi.猎海豹；n.密封；印章；海豹；封条；标志；n.（Seal）西尔（人名）；vt.密封；盖章

apostille seal───使徒印章

downcomer seal───降液管液封

fecal contamination───粪便性污染

contamination definition───污染定义

crabeater seal───锯齿海豹

grey seal───灰海豹

weddell seal───[脊椎]威德尔氏海豹

Hydrophobic coatings seal lens surfaces with an ultra-smooth polymer, making it easy to clean the eyeglass lenses from dirt, water or oily contamination can simply be wiped off.───膜在镜片表面封上一层非常致密平滑的聚合物，使得镜片表面灰尘、水及油污清洁异常方便。

seal have several disadvantages, for example, complicated control system, highly maintenance cost, serious contamination, more power consumption and lower stability.───密封和接触式机械密封需要密封油及油液控制系统，其控制系统复杂、维护费用高、污染严重、能耗较大、稳定性较低；