The dirt of felt, washing water, and washing technique are researched in this paper.

本文对毛毯中污染物、洗涤用水和洗涤技术进行了研究。

youdao

Therefore, reservoir protection packer sand washing technique is adopted to solve this problem.

因此，研究采用保护油层封隔器冲砂技术，来解决这一问题。

youdao

Before sales: learn the washing technique, equipment conditions and internal simulation test of the client and make proper program.

售前：了解客户清洗工艺、设备状况、公司内部模拟测试，制定相应方案。

youdao

At the moment, would-be parents are offered a sperm "washing" technique prior to insemination, which removes cells and other detritus which can harbour the virus.

BBC: Sperm heating could foil HIV