n.用以关闭的东西(如阀门、开关等);栓;遮断;停止;
英文例句/中文翻译:
Purpose: to test shutoff valve No.2 for tightness.
目的:检测2号关闭阀的密封性。
Studies on Temperature-Resistant and Highly-absorptive Water-shutoff Agent
耐温型、强吸附、新型高效堵水剂的研究
Experimental study on water shutoff of sulfonated larch tannin extract to aqueous layer in the fracture-cavity karst reservoir
改性栲胶在缝洞型碳酸盐岩油藏中的堵水实验研究