airscrew diameter

例句：

1. 1. The airscrew diameter is 20 mm,which is within the standard range.
   空气螺丝直径为20毫米，符合标准范围。
2. 2. The airscrew diameter affects the performance ofthe air screw.
   空气螺丝直径影响空气螺丝的性能。
3. 3. The air screw diameter iscritical for the design of the air screw.
   空气螺丝直径对空气螺丝的设计至关重要。