某一系统发生与其约束相适应的任意假想位移时，力对这一系统所作的功在一个物理系统里，力作用于物体，导致虚位移，所作的功称为虚功。
虚功 [xū gōng]
双语例句原声例句
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在这个增量形式的虚功方程中，考虑了积累误差的影响。
The effect of truncation errors is considered in the incremental virtual work equation.
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而物理模拟虚功原理及余虚功原理是物理模拟能量原理的统一理论。
And the virtual work and complementary virtual work principles for physical simulations are united theories of the energy principles for physical simulations.
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The virtual work of the reader does not involve surprise, does not involve the violation of expectations.
读者的虚功中没有惊讶，也没有期望的违背。
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Now in order to illustrate the way in which what Iser calls virtual work gets done in this regard, let me just run through a few passages quickly.
现在，为了阐释,在这点上，伊瑟尔所说的虚功是怎样做的，下面我们来快速地浏览几段话。
应用推荐
$firstVoiceSent
- 来自原声例句