For some the sound could make sleep harder, but for others, the steady beat of the ticking, or the quiet hum of an electric motor in a fan can be very peaceful.
有些东西发出的声音令你很难入睡，但有些东西是固定行走或敲打的，风扇有规律的转动的声音听起来很和平。
When Li Da and Wang Dingnan got to Matou, they found all the motor vehicles and horse-drawn carriages facing south, ready to beat a retreat.
李达、王定南一到那里，看见所有的汽车、马车都是头向南，准备撤退的。
The motor drives the rotating rack to rotate through the belt pulley; and the cross bar and the pipe barrel beat the soybean plant for threshing.
电机通过皮带轮带动转动架转动，横杆和管筒拍打大豆植株脱粒。
On this basis a two-three beat stepper motor control circuit of the hardware interface, the program flow chart and assembler.
在此基础上提出了双三拍步进电机程序控制的硬件接口电路、程序流程图和汇编程序。
On this basis a two-three beat stepper motor control circuit of the hardware interface, the program flow chart and assembler.
在此基础上提出了双三拍步进电机程序控制的硬件接口电路、程序流程图和汇编程序。
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