adjustable valve

• 调节阀

adjustable valve的用法和样例：

例句

1. Install a shutoff valve upstream of the regulator.
   在调节阀的上游安装关闭阀。
2. If uneven pressure should cause the regulator to pulsate, its action can be stabilized by throttling the valve.
   如果不稳定的压力导致调节阀波动，则这种波动通过对阀门节流将稳定下来。