【经】 reservoir recovery
paint; fat; grease; oil
【化】 oil
【医】 elaeo-; eleo-; oil; Ol; olea; oleo-; oleum
layer; region; stage; story; stratum; tier
【计】 layer
【医】 coat; lamella; lamellae; lamina; laminae; layer; strata; stratum
recovery ratio
【经】 percentage recovery; recovery factor; recovery per cent; recovery ratio