This progressive decompression design conforms to the venous flow principle, is conducive to the smooth flow of venous blood.

这种循序减压设计符合人体静脉流动原理，有利于静脉血液的顺畅回流。

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Using the progressive iterative, the method allows direct extension of MFES to nonlinear inviscid compressible flow. Thus it provides a new approach to the solution of the nonlinear equations.

采用逐步逼近的办法，可以把有限基本解方法推广到求解非线性的无粘可压流体，从而为非线性方程的求解提供了新的途径。

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Their general characteristics are of obvious progressive metamorphism, with the heat flow from mantle as the essential factor and a collision orogenic belt to be the tectonic setting.

其共同特征是：具明显的递增变质现象，以地幔热流上升为主要因素，构造背景为碰撞造山。

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