swirling inlet

• 旋流进气

swirling inlet的用法和样例：

例句

1. With the lever and weight mounted to balance the weight of the disc, the valve becomes more sensitive to low inlet velocities.
   安装的杠杆和压铁能够平衡阀瓣的重量，这样阀门对于比较低的流进速度将会更加灵敏。