The design element and the experiment result of reversible orifices and changing orifices low velocity flow is high.
分析了可逆式孔板流量计和可变式孔板流量计的设计原理和实验结果。
It's precious, is it because the time is not reversible, once the flow away, they never come back.
它的珍贵，正所以是因为时间是不可逆的，一旦流走，就再也不会回来了。
A reversible axial flow fan is required to run with high aerodynamic performance both in forward direction and in backward direction.
可逆风机在正向与反向送风时，都希望具有良好的气动性能。
WT35-11 comes as an axial-flow roof fan that features low and medium levels of pressure and heavy wind flow and can be geared to the needs of blowing, exhaust and double-rotation reversible mode.
WT35-11型为屋顶轴流式通风机，该风机为中低压大流量风机，可设计成送风、排风或双旋转可逆式。
A model of percolation flow through non-perfectly reversible deformation medium and its numerical solution;
反之，用数值解来分析精确解的完整性也是一种有意义的方法。
A model of percolation flow through non-perfectly reversible deformation medium and its numerical solution;
反之，用数值解来分析精确解的完整性也是一种有意义的方法。
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