So, what that means concretely is if you have a force field that conservative, then you cannot build somehow some perpetual motion out of it.

具体来讲，如果你有一个保守力场，就不可能建立起永恒的运动。

youdao

Make sure that you design for some ground motion that has the small chance of happening. We want to be pretty conservative.

卢科表示，“请在设计时确保考虑到一些极小几率发生的地表运动，我们应该相当保守。”

youdao

This article expounds again whether the mechanical energy is in the uniform motion in a straight line, as the mechanical energy is conservative when the system is in the frame of earth reference.

本文针对系统相对于地球参照系机械能守恒时，在相对于地面作匀速直线运动的参照系中机械能是否依然守恒的问题进行了重新论证。

youdao

Mr Drakeford said the government would back the Conservative motion relating to responsibility in general.

BBC: NHS in Wales: Missed appointments charge call

Cardiff Central AM Jenny Rathbone branded the Conservative motion a "hotchpotch" and argued that if people don't trust their councils, then they're unlikely to engage.

BBC: Conservatives' debate on local communities

First Minister Carwyn Jones announced the new award in the Senedd after a Welsh Conservative motion called for a new Welsh honours system and for St David's Day to be made a bank holiday.

BBC: St David Awards: Welsh honours system announced