| 释义 |
ˌcontra-roˈtating, a.
[contra- 1; cf. contrarotation.]
Rotating in opposite directions.
1945J. A. Kyd Variable-Pitch Propellers i. 9 Another development..appears to be maturing at the moment; this is the Contra-rotating propeller, which consists of two three-bladed propellers revolving in different rotations on the same shaft. 1949Gloss. Aeronaut. Terms (B.S.I.) ii. 20 Contra-rotating propellers, two propellers mounted on concentric shafts having a common drive and rotating in opposite directions. 1960Farmer & Stockbreeder 1 Mar 72/1 Washer..with contra-rotating cleaning brushes operating from a central spindle in the drum. 1962Times 19 Apr. 24 A British two-seater aircraft having two co-axial contra-rotating lift rotors. |