At first, it studied the plant model of position and force system about valve control unsymmetrical hydraulic ram.
首先，建立了阀控非对称缸位置控制系统与力控制系统的数学模型。
The Model 1600a precision vacuum regulator features control sensitivity of 1 water column and a balanced supply valve for high precision.
示范1600a精密真空调节器控制1敏感性水柱和高精度供求平衡的阀门。
Advanced warehouse management model for all walks of life provide users with a large number of electric, pneumatic control valve adjustment.
先进的仓库管理模式，为各行各业用户提供了大量的电动，气动调节控制阀。
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