Rubber ball cleaning device of condenser is composed of second filter net, ball screen, ballcollector, rubber feeding pump, distributor, valve, and electric control box.
凝汽器胶球清洗装置由(二次滤网)、收球网、装球室、胶球输送泵、分配器、阀门和电气控制柜等部件组成。
2
A celluloid ball(i. e, a table tennis ball) has the permeability for helium and may be used as a soil helium gas collector when burried in the soil.