开口 [kāi kǒu]

• • （开口说话） open one's mouth; start to talk; begin to speak:

    hold one's tongue;

    不开口

    find it difficult to bring the matter up

    难以开口

  • （开刃） put the first edge on a knife; sharpen the edge of a new blade
  • opening aperture; {纺} shedding; aperture; placketing; orifice; fent; hiascent
• 短语:
  • 开口扳头[手] open-end wrench; open spanner;
  • 开口保险单 open policy;
  • 开口比 aperture efficiency;
  • 开口扁销 key;
  • 开口冰斗 {地质} open cirque;
  • 开口槽 {电} open slot;
  • 开口沉箱 {建} cylinder caisson; open caisson;
  • 开口刺丝囊 {无脊椎} stomocnidae nematocyst;
  • 开口粗轧孔型 open roughing pass;
  • 开口带线圈 split thread ring;
  • 开口挡圈 split washer;
  • 开口倒相障板 {电} ported baffle;
  • 开口导缆钳 open chock;
  • 开口垫圈 open washer; {机} split collar;
  • 开口电路调节器 open-cycle controller;
  • 开口订单 open order;
  • 开口订货单 open indent;
  • 开口洞 ambut;
  • 开口端 openend; open end; open-ended; soft end;
  • 开口对接 open butt joint;
  • 开口断层 open fault;
  • 开口锻模 open dies;
  • 开口对焊 open butt weld;
  • 开口方形直通系统 open square strand passes;
  • 开口坩埚 {工} shoe;
  • 开口高度 open height;
  • 开口管柱 open tubular column;
  • 开口合同 open-end contract;
  • 开口湖 outlet lake;
  • 开口回路 open loop;
  • 开口机 tapping machine;
  • 开口机构 shedding mechanism;
  • 开口键 forelock key; split key;
  • 开口接杆 slotted jaw; jaw;
  • 开口接合杆 slotted joint;
  • 开口孔 open pore;
  • 开口孔型 open pass;
  • 开口铆钉用钢丝 bifurcated-rivet wire; split-rivet wire;
  • 开口链 open link; open link chain;
  • 开口梁形轧槽 live beam pass;
  • 开口裂缝 open fissure;
  • 开口螺栓 split bolt;
  • 开口锚炼孔盖 riding buckler;
  • 开口铆钉 {工} bifurcated rivet; split rivet;
  • 开口（孔径）面积效率 efficiency;
  • 开口木沉箱 caisson;
  • 开口内桩 {钟} collet;
  • 开口皮带 open belt;
  • 开口皮带转动 {机} open-belt drive;
  • 开口皮带传动装置 open belting;
  • 开口器 mouth gag;
  • 开口钎 tap-hole bar; tap-out bar;
  • 开口钎子 starter;
  • 开口钳 open mouth tongs;
  • 开口腔 atrium;
  • 开口壳 open shell;
  • 开口圈 broken ring;
  • 开口三角形接法 open-delta connection;
  • 开口三角形连接 open-delta;
  • 开口伤{医} open trauma;
  • 开口榫槽 open mortice;
  • 开口踏盘轴 bottom shaft;
  • 开口弹簧 split ring;
  • 开口套筒联轴节 split muff coupling;
  • 开口（孔径）天线 aperture antenna;
  • 开口调整环 split adjusting collar;
  • 开口铁心 open core;
  • 开口桶 stand;
  • 开口凸轮 shedding cam; shedding tappet;
  • 开口网 open net;
  • 开口系统 open loop system;
  • 开口线圈 open stitch;
  • 开口销 linchpin; lynchpin; split cotter; split pin; spring cotter; forelock; {设计} cotter pin;
  • 开口信件 unsealed letter;
  • 开口循环 open cycle;
  • 开口轧槽 open groove;
  • 开口圆板牙 adjustable round split die;
  • 开口毡封圈 split-ring seal;
  • 开口爪扳手 open-jawed spanner