The author introduces a method of dredging stems in small_bore tubes by flexible aiguille.
介绍了小口径换热管堵塞采用柔性钻头疏通的处理方法。
The hardware is a very important part of manual electric drill, which plays a role as connecting the aiguille .
手工电钻钻体是手工电钻一个非常重要的结构件。
The hardware is a very important part of manual electric drill, which plays a role as connecting the aiguille .
手工电钻钻体是手工电钻一个非常重要的结构件。
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