| 普通话 | cmn-000 |
| 调螺距机构 | |
| English | eng-000 | blade adjustment mechanism |
| English | eng-000 | blade drive mechanism |
| English | eng-000 | blade turning mechanism |
| English | eng-000 | hub mechanism |
| English | eng-000 | pitch actuating mechanism |
| English | eng-000 | pitch adjusting mechanism |
| English | eng-000 | pitch changing mechanism |
| English | eng-000 | pitch changing system |