The hydraulic system has high efficiency, saving in energy and pressure-maintaining and overload protection functions.
本发明的折弯机液压系统具有高效、节能的特点，还具有保压、过载保护的功能。
The designed installation is mainly used in synthetic protection of small AC motor. It has the functions of phase failure protection and overload short protection.
本设计装置主要用于中小型交流电动机的综合保护，它具有断相、过载短路保护功能。
They also have these functions, height indication, overload protection, upper and lower' stroke control, field or distance two-control, etc.
具有高度指示、过载保护，上、下行程控制，现场或远程双向控制等功能。
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