Inside was a green paste, waxy in lustre, the odour curiously heavy and persistent.
里边是一种绿色的软膏，有蜡质的光泽，气味浓郁，而且经久不散。
Especially it is applicable to all kinds of pipeline hitch and oil and water pipeline hitch of heavy-medium caliber among the paste pot of purification system in the operation of drilling for oil.
尤其适用于石油钻井作业中净化系统各泥浆罐之间的各种管线联接和大中口径的油、水管路联接。
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