双架桥式起重机 double-beam bridge type crane
双架鎚 Hammer, double frame ; Double-frame hammer
双架锤 Double-frame hammer ; Hammer, double frame
双架桥式抓斗起重机 beam bridge type grab crane ; double beam bridge type grab crane
双脚架 Bipod
双层哑铃架 Double tier dumbbell ; Two Tier DB Rack
双柱架 queen post
双层烤架 double grill
双柱桁架 [建] queen post truss
双管式车架 Double tube frame
据估计，德国西线最高统帅部可以调动的战机约1750架，单引擎机和双引擎机各占一半。
It his been calculated that the German High Command in the West can dispose of about 1, 750 fighter air-craft, about half of which are single and half twin-engined machines.
据估计，德国西线最高统帅部可以调动的战机约1750架，单引擎机和双引擎机各占一半。
It his been calculated that the German High Command in the West can dispose of about 1,750 fighter air-craft, about half of which are single and half twin-engined machines.
弯管内模支撑由半圆弧形支撑架与双变弧垫模组成。
The inner mold support of a knee pipe is composed of the semi-circular arc-shaped support frames and a bivariate arc pad mold.
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