推还是拉数据？
Pushing or pulling, however, does not necessarily mean doing work.
然而，推或拉未必意味着做功。
In relationship to energy flow, I am constantly either pushing or pulling…
在能量流动之间，我们经常会有一些推拉的动作。比如在。
In case there are no forces at all pushing or pushing or pulling a body, that body must always be in equilibrium.
如果根本没有力去推或拉一物体，则那个物体必然总是处于平衡。
Flow into the cylinder can be directed to either end, producing either a pushing or pulling force at the piston rod end.
可以控制油液流如液压缸的其中一端，在活塞杆上产生一个拉力或产生一个推力。
On the final day, I felt my father was pulling or pushing me, because I didn't know where this energy came from.
在最后一天，我感到父亲在拉我或推我，因为我不知道这种力量来自何处。
Again, it is a policy decision as to whether this is performed by the ancestor stream managers (pushing changes downward) or by the descendant stream managers (pulling changes downward).
是由起始流管理员来执行变更(向下推进变更)，还是由后代流管理员来执行变更，(向下拉动变更)，也是一个政策决定。
Flexing or extending the arms, for example (the motions involved in either pulling or pushing) can make someone more apt to like or dislike something, respectively, researchers have reported.
比如，研究者已经发现，弯曲或伸展手臂(涉及推或拉的运动)会分别使人更倾向于喜欢或不喜欢的某一个东西。
Whether this is performed by the descendant stream managers (pushing changes upward) or by the ancestor stream managers (pulling changes upward) is a policy decision.
是由后代流管理员来执行变更(向上推进变更)，还是由起始流管理员(向上拉动变更)来执行变更，这是一个政策决定。
Second, if the model is correct, some other process could be pulling (or pushing) hydrogen toward the surface.
第二，如果这个数学模型是正确的，一些其他的作用也可能把氢气拉(推)到地表。
If that object is a car, we conclude that some one is pulling or pushing it, or the motor is playing the trick.
如果那个物体是一辆汽车，我们就断定那是某人在推或拉它，或者是发动机在起作用。
Use care when getting in and out of a car, chair, or tub, as well as for climbing, lifting, carrying, pulling, or pushing objects. Think before you strain.
在进出汽车、椅子或浴盆时要小心谨慎，同样在攀援、举重、提、拉或推重物时也要小心，避免受伤。
Use care when getting in and out of a car, chair, or tub, as well as for climbing, lifting, carrying, pulling, or pushing objects. Think before you strain.
在进出汽车、椅子或浴盆时要小心谨慎，同样在攀援、举重、提、拉或推重物时也要小心，避免受伤。
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