基本解释[经济学]链条齿轮英汉例句双语例句In the design of noncircular chain drive , the key problem is the design of pitch line of noncircular chain wheel.在非圆链传动的设计中，一个关键问题就是非圆链轮节曲线的设计。词组短语短语chain n pitch wheel 链条齿轮专业释义经济学链条齿轮