停止阀: cut off out valvecut off valvecut out valvestopvalvestovalvevalve, shut offvalve, stop
Example Sentences:
1.
We believe that it is still too early to stop taking additional random biopsies at surveillance colonoscopy in patients with ulcerative colitis 我们相信对长期溃疡性结肠炎患者行结肠镜检查停止附加的随机活检还为时过早。