rotary fishing jar 旋转打捞震击器
hydralic fishing jar 液压震击器
super fishing jar 超级震击器
mechanyical fishing jar 机械震击器
hydraulic super fishing jar 液压式上击器
super fishing up jar 超级上击器
CSJ type super fishing jar is a fishing tool which the jarring force is larger than other jar with same specification.
CS J型超级震击器是一种震击力比同规格的其它震击器大得多的打捞工具。
The design feature and working principle of the hydraulic accelerator and the fishing jar art, introduced. The motion pattern and dynamic performance of the jar pipe string are analyzed.
介绍了液压加速器和震击器的结构、工作原理以及震击管柱运动规律与动力性能。
Their practice is to use one over-shot and one jar for fishing.
他们的做法是使用一个卡瓦打捞筒和震击器去打捞落鱼。
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