常見例句The ammonia refrigeration evaporator was used as an example to calculate the effect of temperature difference of heat transfer oncost, and analyse the significance of optimal design. 得出冷量的價(jià)格主要隨電價(jià)的陞高而增大，隨單位軸功率的制冷量的提高而減小，且遠(yuǎn)高於熱量的價(jià)格；office oncost 一般經(jīng)費(fèi) 返回 oncost