The old view of it was rather mechanical: pull the interest-rate lever up and, via Banks and bond markets, lending and spending would fall; pull it down and they would rise.

老观点相当机械的认为：提高利率水平，借贷和支出将通过银行和债券市场得到削减，反之亦然。

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Based on this, the generic procedure of modeling planar multibody mechanical systems by bond graphs and its dynamic principle are described.

以此为基础阐述了建立平面多体机械系统键合图模型的一般方法及其动力学原理。

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As a new joist technique of concrete pipe pile, the prestressed concrete pile mechanical bond express joint has been used in engineering nowadays.

预应力混凝土管桩机械快速接头作为一种新型的管桩连接技术，近年在工程中时有使用。

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