The mechanism of the produce of target noise, its transmission characteristics in air and several main factors that influence the sound transmission are analyzed.
分析了低空目标声源的产生机理、目标辐射噪声在大气中的传播特性以及影响其传播的几个主要因素。
It adopts the newest type high-power transmission mechanism to arrange the chain and drive the main driving shaft. The errors and noises of other gear wheel transmission can be avoided.
采用国内最新型的大传动机构，由排链带动主传动轴，免除了其它齿轮传动的误差和噪音。
The present invention discloses a switching mechanism (1), which has a main arresting mechanism (2) including a drive shaft (3) and a transmission output device (4) that coupled on the drive shaft;
一种电气开关锁扣机构（1），具有一个主锁扣机构（2），该主锁扣机构包括一个驱动轴（3）和一个耦合在驱动轴上的传动输出装置（4）；
The utility model comprises an electric motor, a transmission belt, a gear box, a supporting frame, a straightening mechanism, a machine base, etc., as the main parts.
本实用新型由电动机、传动皮带、齿轮箱、支架、调直机构和机座等主要部件组成。
The utility model comprises an electric motor, a transmission belt, a gear box, a supporting frame, a straightening mechanism, a machine base, etc., as the main parts.
本实用新型由电动机、传动皮带、齿轮箱、支架、调直机构和机座等主要部件组成。
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