valves是什么意思

valves是什么意思

valvesn.阀( valve的名词复数 ); 真空管; （管乐器的）活栓; （心脏的）瓣膜; 网络气阀; 阀门; 形近词：Valveshalvessalvescalves 双语例句柯林斯词典1Since the engine has no valves, it doesn't need any camshaft, valve lifters and so on.因为发动机没有阀门，它不需要任何凸轮轴、起阀器等。 2They were published in Hong Kong and distributed in China, in simplified Chinese characters, with advertising from international companies wanting to sell industrial products to China: machine tools, construction equipment, pumps and valves, etc.杂志使用简体中文，刊载一些希望向中国销售产品的外国公司广告，如:机械工具、建筑设备、泵及阀门等。