By using AT89C51, the control part sets the system operation mode and adjusts the outputvolume.
控制模块采用微控制器at89c51，完成系统的模式设定和音量控制。
2
Reciprocating pumps convert rotary motion to linear motion. Pump speed in RPM determines the pumps outputvolume for any given combination of cylinder bore and piston stroke.
循环泵将曲轴旋转运动转化为柱塞的直线运动。泵速转每分钟决定了任何气缸和活塞组合的排泵量。
3
One of the most powerful features of the IBM trace engine is its ability to trigger on trace events, which is vital for creating targeted trace output and reducing the volume of trace data produced.