被压抑的

This is an effortless to use Sony product that offers regulars...

这是一个轻松使用索尼的产品，提供的常客。。。

By means of Laser Doppler Velocimeter and on the basis of the theory of fluid mechanics, the effects of the structural and operating parameters of a double-cone type hydrocyclone on the tangent velocity field are investigated.

利用多普勒激光测速仪，结合流体力学理论，试验分析了双锥体水力旋流器结构和操作参数对切向速度场的影响。