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南通市启东测功设备厂曾于1985年开始引进联邦德国ZOLLNER公司A型和P型水力测功器制造技术。 P型测功器属压力控制式,只有在闭环控制下才能稳定工作。由于控制系统代价高
Nantong Qidong Measurement Equipment Factory was introduced in 1985 Germany ZOLLNER company A-type and P-type dynamometer manufacturing technology. P-type dynamometer is a pressure control, only under closed-loop control to work stable. Due to the high cost of the control system