ガス交換 でしょう
gasukōkandeshō
1. Probably gas exchange.
Noun
#157850
1. Probably gas exchange.
1. to urge; to encourage
2. to stimulate (e.g. growth); to hasten (e.g. development)
1. to tear off; to peel off
1. diplomat
1. to set free; to let go
2. to miss (e.g. a chance); to lose
1. to burn; to scorch
1. to shake; to swing
1. exhaust fumes