1·Control type: normally closed, normally open, double acting.
控制形式：标准常闭、常开、双作用。
2·These valves can be normally closed, normally open or universal.
这些阀门可以常闭，常开或普遍。
3·Limit switch, directly actuated, spring returned, normally closed.
直接启动、弹簧复位、正常闭合的限制开关。
4·Limit switch, directly actuated, spring returned, normally closed.
直接启动、弹簧复位、正常闭合的邻近限制开关。
5·Usually divided into normally open, normally closed and self-holding three.
通常分为常开型，常闭型和自保持式三种。
6·Proximity limit switch, directly actuated, spring returned, normally closed.
直接启动、弹簧复位、正常闭合的限制开关。
7·In the normally closed position, one end of the capacitor is connected to circuit lo.
在常闭位置，电容器的一端被连接到电路lo。
8·All of these are normally closed valves, except for reducing valves, which are normally open.
所有这些都是正常关闭阀，除减少阀门，一般开。
9·Any combination of normally closed, normally open or universal valves may be grouped together.
任何结合在一起的常闭，常开或通用阀门可归纳。
10·Limit switch, directly actuated, spring returned, normally closed. Right-click for closed or held open.
限制开关，直接启动，弹簧复位，正常情况下为闭合。右击接通或保持断开。