チェックバルブではありませんでした
chekkubarubudewārimasendeshita
1. Was not a check valve.
Noun
#514106
1. Was not a check valve.
1. pupil; disciple
1. check-in
1. valve
1. hedge
1. traveller's cheque; traveler's check
1. becoming a pupil (of); becoming an apprentice
1. deci-; 10^-1