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对转螺旋桨 duìzhuàn luóxuánjiǎng
avia. contra prop
nautic., tech. coaxial contra-rotating propellers; contra rotating propeller
shipb. contrarotating propeller
tech. contra-rotating propellers
对转螺旋桨
: 5 phrases in 3 subjects
Aviation1
Shipbuilding1
Technology3