 |
| |||
| standard pitch (螺旋桨的桨在螺旋桨三分之二半径处测得的几何桨距，用百分数的形式来表示，又称 nominal pitch (标称节距)) | |||
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips