... double streamline 双流线型 double stroke 双行程 double submerged arc weld 双向埋弧焊 ...
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短语
双发延程飞行
ETOPS
;
Extended-range Twin-engine Operational Performance Standards
双程行车
two way traffic
双行程液压缸
dual-stroke hydraulic cylinder
单线双程行车
one lane for two-way traffic
双程双线行车天桥
dual two-lane flyover
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