raising and lowering operator 上升及下降算子
boom raising-and-lowering gear 吊臂升降机构
raising and lowering mechanism 沉浮机构
feedboard raising and lowering control 馈送盘升降控制
lowering and raising 沉浮过程
lowering and raising course 下沉上浮过程
Windows shell scripts for raising and lowering Windows.
升高和降低窗口的Windows shell脚本。
Both groups learned simple arm motions, such as raising and lowering the arm, equally well.
这两个组都同样出色的学会了简单的手臂动作,如升降手臂。
The cat-head is a large wooden beam that extends from vessels at a 45 degree angle and is used to assist in raising and lowering the anchor.
舰首猫架是一个大型木质梁,它以45度角延伸用于辅助提升或抛下锚钩。
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