Cease to track satellite in coastal waters. Then return to normal working order in offshore waters.
在近岸航行时丢失跟踪卫星。然后在离岸较远时又恢复正常。
In order to keep the normal operating state of a electro motor, the working frequency of the electro motor should be much lower than that of natural frequency.
为防止共振发生，电动机的工作频率应远远小于其固有频率。
In order to keep the normal operating state of a electro motor, the working frequency of the electro motor should be much lower than that of natural frequency.
为防止共振发生，电动机的工作频率应远远小于其固有频率。
应用推荐