relation n. 1.说话,叙述,报告;故事。 2.关系,联系;〔pl.〕(利害)关系,交情;〔pl.〕国际关系。 3.亲戚关系;亲戚。 4.【法律】告发;追溯效力。 5.比率,比数。 6.〔pl.〕男女关系;性关系。 diplomatic relation 外交关系。 the relations of production 生产关系。 social relations 社会关系。 the relation between cause and effect 因果关系。 the relation of father and son 父子关系。 Is he any relation to you 他是你的亲戚吗? bear no relation to =be out of all relation to 和…无关,和…完全不称。 The outlay seems to bear no relation to the object aimed at. 这费用似乎和预期目的完全不相称。 have relations with 和…有(某种)关系。 have relation to 有关;和…有关系(The report has relation to a state of things now past. 这个报告是关于现在已经过去的事件的)。 in [with] relation to 关于…,就…而论。 make relation to 提及…,读到…。 relation by marriage 姻亲,裙带关系。
If the orientations of driving elements are reversed then it is necessary to change a sign in their terminal relations . 如果驱动元素的定向取反了,就必须在它们的端子关系中改变符号。
An element is lumped if its terminal relation is an ordinary differential equation as opposed to a partial differential equation . 如果一个元素的端子关系是一个常微分方程,其反面为一个偏微方程,则它是集总的。