intensity of back washing 滤池冲洗水量 ; 返洗强度
Back washing machines 毛条复洗机 ; 老西整理
back washing 复洗 ; 反洗 ; 回洗 ; 反向洗涤
Back washing intensity 反冲洗强度
back washing machine 复洗机 ; 毛条复洗机
condenser back washing 凝汽器反向冲洗
forced back washing 强制反洗
Back then, televisions, refrigerators and washing machines were luxury items. Few Chinese families could afford them.
那时候，电视机、冰箱和洗衣机都属于奢侈品，在中国很少有人能买得起。
At a church supper the other night, he and his wife were in back washing dishes.
前几天晚上教堂举行晚餐会，他和太太一起在后面洗盘子。
A hydraulic setting anchor of type GY241, and a double packing ZY331 back washing packer features in self pack and rubber sleeve pack are developed.
研制了液压坐封gy241型锚定器和“自封与压缩胶筒”双重密封的ZY331型反洗封隔器。
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