双发延程飞行 ETOPS ; Extended-range Twin-engine Operational Performance Standards ; engine Operation Performance Standards
双发双收法 Double transceiver technique
双发动机 twin engine ; bi-motor ; bimotored ; duplex engine
双发动机飞机 bimotor ; twinjet ; twin-engined plane
双发射手 Repeater
双发动机驱动 Double-engine drive ; engine drive
双发快射 Double tap
双发豌豆 Repeater
双发动机并联传动 dual engine drive
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