downward movement
向下运动
常用释义
英式发音
美式发音
基本释义
- 向下运动
例句
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1·Downward movement is much faster than upward one.向下移动比向上移动快得多。
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2·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。
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3·Downward movement with the Fast and Feeding speed, the fast forward improve work efficiency;下压行程具有快进与工进两种速度， 快进提高工作效率；
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4·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。
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5·A upward movement means the price stays strong whereas a downward movement means the price is going slump abruptly.向上跳空代表价格走势强劲，向下调控代表价格急剧转疲。
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6·It is precisely that the vulgarization and the downward movement of the upper class's mysticism was the reason of this situation.正是由于玄学从上层社会的向下移动和庸俗化，才导致了这样的局面。
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7·Air and fuel are drawn into the cylinder by the downward movement of the piston, the piston then moves up and squeezes this mixture which is then ignited.空气和燃料，是由各该活塞向下运动，活塞然后移动起来，这是挤出，然后点燃混合气进入气缸。
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8·The upper end of the upward-downward movement mechanism is provided with a cylinder piston connected with a jointing part of a pair of long connecting rods.下运动机构上端是一个气 缸活塞与一对长连杆的交接处相接；
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9·A centrifugally activated device for controlling the speed of movement of an elevator cab includes the capability of controlling upward and downward movement.一种用于控制电梯车厢运动速度的离心致动装置，包括控制向上和向下运动的能力。
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10·Large intake vents open so that the output pressure off small increase, thus putting downward movement so that implementing agencies spool valve to open or close.进气口开大排气口关小使输出压力增加，因此执行机构推杆向下移动使调节阀阀芯开启或关闭。
同义词