... leak-proof 密封的，不漏气的；防漏的，不漏电的，不漏磁的； leak-proof device防漏装置，密封装置 leakproof motor pump 密封[电动]泵 ...
双语例句
1
The utility model relates to a discharging device for gas inside an annealing furnace, in particular to a leak-proof heat exchanger of the annealing furnace.