N a device for enlarging or reducing maps, plans, etc 放大或缩小绘图器
Then carry out the accurate diagraph of discharge.
进而实现流量的准确测量。
This article presents a simple method of figure identifying for image of optical diagraph.
介绍光学分度头读数屏数字识别的一种简单方法。
Diagraph spring pneumatic brake valve is widely used as control valve for tractor - trailer braking system.
膜片弹簧式气制动阀作为控制阀已广泛地应用于拖拉机挂车制动系统。
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