He must know how to use this fishing tool.
他一定知道如何使用这个打捞工具。
A fishing tool that is run on a wireline or pipe.
用钢丝绳或管子下入的一种打捞工具。
Should the fishing tool be broken, we could not go on working.
万一打捞工具折断，我们就干不成了。
The impression is used to choose the right fishing tool to remove the fish.
印痕用来选择正确的打捞工具以取出落鱼。
Through the construction example, a simple fishing tool is introduced to deal with the accident.
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.
通过工程实例，介绍了一种简易事故打捞工具。
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