... twist-against-twist 反向加捻 twist-drill spear 一种打捞工具 twist-free yarn spinning 无捻纺纱 ...
基于36个网页-相关网页
用钢丝绳或管子下入的一种打捞工具。
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。
CSJ type super fishing jar is a fishing tool which the jarring force is larger than other jar with same specification.
通过工程实例，介绍了一种简易事故打捞工具。
Through the construction example, a simple fishing tool is introduced to deal with the accident.
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