liquor pullover

用法例句

In this paper,the development and key technologies of YBG series of hydraulic pipe-pulling machine was elaborated;the usage,principle of performance,structural feature and main technical parameters were briefly introduced;and key links in the application were also emphasized.

阐述了研制YBG系列液压拔管机的意义及关键技术;简要介绍了YBG系列液压拔管机的用途、工作原理、结构特点和主要技术参数;在此基础上,着重强调了在使用液压拔管机的过程中应注意的关键环节。