The second stoke causes an upward motion of the piston.
第二个冲程使得活塞向上运动。
Most clouds are produced by the upward motion of air, which may be caused by weather or local topography.
大多数云彩是由向上运动的空气引起，这可能是由于天气或当地的地形学。
Since your feet are your most important instrument for upward motion you want to put some care in choosing your shoes.
由于脚是你上升最重要的工具，所以你应该多关注攀岩鞋的选择。
The key is absorbing the downward motion and reversing the force into an upward motion as rapidly and smoothly as possible.
要点就是吸收向下的动力，并尽可能迅速平稳地将这个力量转换成向上的动力。
Upward motion of the buoy causes a suction which lifts the balls, thus allowing air to be drawn back down the counterweight tube.
浮标的向上运动则产生吸力，可将阀球提起，这样可允许气流受力并返回至配重管。
The stronger mass convergence, moisture convergence and upward motion are located in the eastern and southern part of the depression.
强烈的质量辐合、水汽辐合和上升运动等位于低压东侧和南侧。
The causations of heavy rain in this area are convergence in the low level and intensity of cyclonic vorticity and strong upward motion.
低层辐合和气旋性涡度的加强所产生的强上升运动造成较大的降水过程。
To transfer the motion of the CAM upward to the valve, additional parts are needed.
为了将凸轮的运动传给气门需要一些附属装置。
To move upward or forward in a single quick motion or a series of such motions; leap.
跳，跃：以一种很快的动作或一系列的动作作向上或前进运动；跳跃。
The velocity of the Taylor bubble has been experimental studied in different axial position of upward inclined pipe by using high speed motion analyzer.
本文使用高速动态分析仪对低温倾斜上升管内不同位置处弹状汽泡进行了可视化实验研究。
To Use: Once daily every evening, gently smooth over cleansed face and neck, in an upward and outward motion avoiding eyelids.
每晚取适量以向外打圈的方式涂抹于清洁后的面部及颈部皮肤上。避开眼部使用。
When a drill string moves upward or downward in a well, significant stress variations at the suspension point are caused by the starting and stopping of the motion.
钻柱在上提、下放的开始和终了悬点的应力要发生很大变化，其中以上提过程的终了时变化最大。悬点的应力变化产生速度波和应力波沿钻杆向下传递。
When a drill string moves upward or downward in a well, significant stress variations at the suspension point are caused by the starting and stopping of the motion.
钻柱在上提、下放的开始和终了悬点的应力要发生很大变化，其中以上提过程的终了时变化最大。悬点的应力变化产生速度波和应力波沿钻杆向下传递。
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