让人去打开调节阀前的切断阀的翻译：So before going to the open control valve block valve 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

People to open the valve shut-off valve before

So before going to the open control valve block valve

Let the human turn on in front of the regulating valve the trip valve

Before regulating valve opens to let people get the cut off valve

So before going to the open control valve block valve