例句與造句

1. In this paper , based on my experiments , the mechanism of pneumatic defrosting of air cooler was studied through the application of thermodynamics , heat and mass transfer , classical theory of nucleation , boundary - layer theory , the theory on gas dynamics
   本文在對氣動除霜進行了實驗研究的基礎之上，應用工程熱力學、傳熱傳質學、晶體成核理論、邊界層理論、氣體動力學等有關知識，從系統(tǒng)的觀點出發(fā)，探討了氣動除霜的機理。
2. It's difficult to find boundary-layer theory in a sentence. 用boundary-layer theory造句挺難的