telescopic jib (boom)

 
  • 伸缩臂

telescopic jib (boom)的用法和样例:

例句

  1. The hexagon three-section telescopic boom enhances the stability and working range of the crane.
    六边形三节伸缩臂大大提高了工作的平稳性,扩大了整机的工作范围。
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