Practice shows that the well testing truck with hydraulic drive system can not only overcome the shortages existed in that with mechanical drive or mechano-hydraulic compound drive, but...
英
美
释义
实践表明,试井车采用液压驱动,不仅能克服机械驱动或机械加液压联合驱动存在的缺点,而且结构简单,工作可靠,噪音小。
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