downward movement翻译

downward movement的基本解释

读音: 美: 英:

向下运动

例句

downward movement is much faster than upward one.向下移动比向上移动快得多。
This downward movement forces the valve to move downward off its seat so that it opens.向下的运动使气门向下移动离开气门座，气门被打开。
Most conventional downhole tools operate by upward or downward movement, rotation, or a combination of both.大多数常规井下工具都是由向上或向下移动、旋转或两者相结合进行工作。

短语

A downward movement 下降 ; 向下的运动
arrest the downward movement 限制价格下跌
downward movement velocity 下移速率
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