special plug that is connected to a machine or tool and is used to block an opening
SAFETY VALVE
Meaning of SAFETY VALVE in English
Explanatory English dictionary bed edition. Толковый словарь английского языка Редакция bed. 2012
special plug that is connected to a machine or tool and is used to block an opening
Explanatory English dictionary bed edition. Толковый словарь английского языка Редакция bed. 2012