双作用滑片泵 double action vane pump ; two cell vane pump
双作用活塞泵 double acting piston pump
双作用 DOUBLE ACTING ; double action ; difunctional ; CJPB
双作用定位器 double acting positioner
双作用离合器 Double-acting ; dual clutch ; double action clutch
双作用大吨位 CLRG
双作用无杆气动泵 dual-acting rodless gas-actuated pump
双作用叶片泵 double action vane pump ; double-acting vane pump
双作用容积式压缩机 double-acting positive displacement compressor ; acting positive displacement compressor
我有一双万能的手，样样事情都会作 你可以说人类进化开始于第一只勇敢的猴子从树上下来。 但科学家早就说过，制造工具，才是让人类真正有别于其他动物的关键。
You could say human evolution started when the first brave ape came down from the trees.
欧盟如今想要采取一个体系两位首脑的做法，就好像欧洲君主自拜占庭时期开始用双头鹰作徽记一样。
Like the double-headed eagle adopted by European emperors since Byzantine times, the EU now tries to act as one body with two heads.
为双钢琴而作的第3弦乐四重奏缩编谱。
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