虚元，读音为xū yuán，汉语词语，解释为道家思想；指构成物质世界的本元，即太虚之元气。
提出了在大圆柱体情况下采用设虚元的方法，从而使远场的计算速度提高一倍。
In order to increase the speed of calculation, some useful methods are given for a cylinder whose diameter is larger compared to the wavelength.
本文从引入虚元的热弹性板元有限元计算和试验测定两方面分析研究了平板堆焊时平面外变形的形态及产生机制。
In present paper, the form and mechanism of formation of out-of-plane distortion during bead-on-plate welding was studied by thermal clastic analysis with introduction of dummy element and experiment.
农民被要求回答他们的年纯收入是8500元人民币-一个虚高的数字，他们说-城市居民被要求的回答是16000元人民币。
Rural residents were ordered to claim that their annual net income was 8, 500 yuan – far above the true figure, they said – while city dwellers were told to declare a 16, 000 yuan income.
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