1. a fusible metal plug set in a boiler shell to release steam when the plug reaches a predetermined temperature due to excessive pressure in the boiler
safety plug 片语
片语
SAFETY VALVE PLUG安全阀门塞
safety fusible plug易熔安全塞
drag link safety plug拉桿安全塞
safety y plug安全塞
safety y plug socket安全塞座
fusible safety plug安全阀
safety plug socket安全塞座
fusible e safety plug可熔安全塞
Curtain safety plug拉开安全插销
safety plug 例句
英汉例句
use safety plug sockets, covering not in use, or use furniture blocking it.