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单词 contrapropeller
释义 contrapropeller|ˌkɒntrəprəʊˈpɛlə(r)|
[f. contra- 2 + propeller.]
One of a pair of propellers having concentric shafts and rotating in opposite directions; a contra-rotating propeller. Hence abbrev. ˈcontraprop |-prɒp|.
1927N. Skene Elem. Yacht Design (1936) xvii. 227 The Star contrapropeller..consists of fixed blades just abaft the propeller, set at an angle to extract a forward thrust from the rotation of the propeller jet.1939Jrnl. R. Aeronaut. Soc. XLIII. 109 Tests of an eight-blade contra-propeller of 32-in. diameter..were made in the wind tunnel at Stanford University.1940Flight 25 Jan. 86/1 Twin engines mounted one behind the other in the fuselage, driving contra-props.1940Times 28 Mar. 10/6 A ‘contraprop’..is a co-axial, oppositely rotating airscrew.
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更新时间:2024/9/20 0:06:23