Numerical control is designed to control...ns called a program.

n.发起者vt.发起 A: metal / ‘metl/ B: sponsor / ‘spɔnsə/ C: God / gɔd/ D: control / kən’trəul/

Control (英文)______ and you control nations; control (英文)______ and you control the (英文)______ ; control (英文)______ and you control the world——Henry (英文)______

下列电子构型中，电离能最低的是（）。 A: ns\nnp\n B: ns\nnp\n C: ns\nnp\n D: ns\nnp

Closed-loop control system is an automatic control system. Open-loop control system is not an automatic control system.

Important branches of intelligent control do not include A: expert control B: neural network control C: fuzzy control D: adaptive control

The one which does not belong to intelligent control is A: neural network control B: expert control C: fuzzy control D: deterministic feedback control

关于比转速ns,说法正确的有 A: ns=30~300为离心泵 B: ns=300~500为混流泵 C: ns=500~1000为轴流泵 D: ns=500~800为离心泵

According to the characteristics of the control system, CNC machine tools can be divided into ( ),( ) and contour control machine tools. A: Point to Point Control B: open-loop control C: line motion control D: closed-loop control

交流异步伺服电动机工作时,转子转速n与旋转磁场转速ns的关系是()。 A: n B: n>ns C: n=ns D: n≤ns