チェックバルブでしょう
chekkubarubudeshō
1. Probably a check valve.
Noun
#2502592
1. Probably a check valve.
1. valve
1. check-in
1. traveller's cheque; traveler's check
1. it seems; I think
2. right?; don't you agree?
1. Of valve; Valve's
1. With check; By checking
1. Checking; Of check
1. Is that okay?; Is it checked?