transmission law消光定理transmissionn.传输；传播；播送；变速器transmission and reflection characteristic反射和透射特性transmission-type cavity frequency meter传输式空腔频率计Transmission line reliability and security输电线路安全可靠性transmission and receive control equipment发送和接收控制设备transmission-line reflection coefficient传输线反射系数transmission bandwidth of backbone network骨干网传输带宽transmission techniques of streaming media流媒体传输技术transmission-countershaft low speed gear传动副轴低速齿轮transmission photo-thermal lens technique透射式光热透镜技术transmission characteristics test equipment传输特性测试设备

1. The choice of optimum transmission ratio making load accelerated speed larger at all kinds of load conditions is discussed.
   讨论了在各种负载条件下使负载加速度最大的最佳传动比选择问题。
2. It is an important but difficult job to compute the transmission ratio and the meshing efficiency of epicyclic gear trains.
   摘要周转轮系的传动比与啮合效率计算是一件重要的也是使人感到困难的工作。