normallly open

• 常开状态

normallly open的用法和样例：

例句

1. When used for balancing water distribution systems, valves should always be in the fully open position at the commencement of any commissioning or flushing exercises.
   如果用于平衡水分流系统，那么在投入运行或进行冲洗作业的开始阶段，阀门应该总是处于全开状态。