积极: positive式: type; style开口: open one's mouth; start to t ...消极式开口: negative shedding积极式多臂机: positive dobbyt字式开口器: t-type mouth gag钳式开口器: forceps-shape mouth gag拆卸式开口器: disjointing mouth gag陆军式开口器: japanese shield type mouth gagt字式开口器,海斯特开口器: t-type mouth gag托牙开口器,陆军式开口器: japanese shield type mouth gag积极式变速喂纱装置: variation positive feed device积极式曲轴箱通风系统: positive crankcase ventilation pcv; positivecrankcaseventilation（pcv）; post-start积极: 1.(肯定的; 正面的) positive 调动一切积极因素 mobilize all positive factors; 起积极作用play a positive role; 作出积极贡献 make positive contributions2.(进取的; 热心的) active; energetic; vigorous 积极工作 work hard; work with all one's energy; 采取积极措施 adopt vigorous measures; 积极性 zeal; initiative; enthusiasm; 积极分子 activist; active element; enthusiast; 他锻炼身体一向很积极。 he has always been very keen on doing physical exercises.; 积极词汇 active vocabulary; 积极疗法 active treatment; 积极平衡 positive equilibrium; active balance开口: 1.(开口说话) open one's mouth; start to talk; begin to speak 不开口 hold one's tongue; 难以开口 find it difficult to bring the matter up2.(开刃) put the first edge on a knife; sharpen the edge of a new blade3.opening aperture; [纺织] shedding; aperture; placketing; orifice; fent; hiascent; 开口订单 open order; 开口订货单 open indent; 开口合同 open-end contract; 开口机 tapping machine; 开口器 mouth gag; 开口销 linchpin; lynchpin; split cotter; split pin; spring cotter; forelock; [设计] cotter pin; 开口信件 unsealed letter换极式: pole change type ac generator两极式: two plate三极式: threepole双极式: bipolar system凸极式: saliency; salient pole type; salient-pole电极式锅炉: electrode boiler多极式阳极: multiple type anode复数的极式: polar form of complex number极式投影网: polar net极式装置: polar mounting
