The device has simple transportation and operation methods and saves labor and time.
该装置运输和操作方法简便，省时省力。
Second part, several good operation methods.
第二部分：值得借鉴的几种操作方法。
Compare the effect of four surgical operation methods.
比较四种不同的手术疗效。
The function and operation methods of fuel gas holder were introduced.
介绍燃料气气柜的作用和操作方法；
The function and operation methods of fuel gas holder were introduced.
介绍燃料气气柜的作用和操作方法；
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