- 相关词组
- bonnet valve帽状阀;
- blowoff valve急泄阀;
- blowout valve排气管，排出阀;
- toggle valve肘形阀门
- alfalfa valve螺旋（苜蓿）式阀；灌溉水阀；灌水栓
- annular valve环形阀，环状阀;
- aorta valve dilator主动脉瓣扩张器;
- master regulating control valve主控调节阀
- booster valve辅助阀;
- self acting valve自动阀;
- self-acting valve自动阀，自动活门;
- oil valve油阀;
- valve bonnet阀帽，阀盖;阀罩;
- material needle valve(喷枪)涂料针形阀
- cylindrical valve柱形阀;
- master and block valve主油管堵塞阀
- bypass valve旁通阀;
- matrix valve矩阵式阀
- by-pass valve分流阀，旁路阀，旁通阀;
- accelerator valve加速器阀;
- 今日热词
- 热门搜索
- profession n.(统称，指需要较高教育水平的)职业；同业；声明；业内人士；(某)职业界；同人；同行；(需要专门技能，尤指需要较高教育水平的某一)行业
- name n.名字;名声;名人;v.给…取名;叫出…的名称;确定;提名;
- aws abbr.adjustable wire stripper 可调剥线钳;advanced warning system 高级警报系统;
- however adv. 然而;(与形容词或副词连用)无论到什么程度，不管多么;不管怎样;无论如何;不过;仍然conj. 不管怎样;不管用什么方法;〈古〉虽然
- irrigate vt.灌溉;冲洗（伤口）;使清新;vi.灌溉;冲洗;
- 中央气象台 Central Meteorological Observatory;Chinese Central Meteorological Station;
- geometry n.几何学;几何形状;几何图形;几何学著作;
- sore adj.疼痛的;使人伤心的;恼火的，发怒的;n.（肌肤的）痛处，伤处;
- ad n.广告;网球中的优势分advantage. ad in;
- burden n.负担;重负;v.烦扰;（使）担负;
- civil adj.国民的;民用的;政府的;民事的;斯文的;有礼貌的;客气的;
- have a good time 过得愉快， 玩得痛快;
