该阀采用大行程的压电叠堆作为驱动元件，经杠杆放大后的位移直接驱动功率级滑阀。
The valve is driven directly by a large strake multilayer piezoelectric stack, its displacement actuates the power cascade spool after amplification by a lever mechanism.
运用该平台对某NASA跨音速单级透平动静叶片及该透平静叶的叶型和弯积叠线进行多目标气动数值优化研究。
Use this platform to optimize the blades of a NASA transonic single stage turbine, the bended stacking line and the profile of this transonic stator.
对于获取低温的两种手段—双级压缩循环和复叠循环来说，它们分别在不同的温区具有经济性优势。
As two means to get a low temperature, two-stage compression cycle and cascade cycle have their advantages of economical performance in different temperature range.
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