Particles deposited in the alveoli are immediately subjected to coating by surface active lipid materials.当粒子沉淀到肺泡中时,立刻会遭到表面活性的脂质物质的复盖.Surfactant is the name given to the lipid secretions that lie in the alveoli.表面作用剂是指肺...
"I'm a real intellectual-type guy, Tracy," James joked. "Oh, give me a break," Tracy moaned.“我可是个货真价实的高智商小伙儿，特雷西。”詹姆斯开玩笑地说道。“哦，别烦我了，”特雷西抱怨道。'They was his last words,'moaned Morgan,'his last words abov...
The nominating committee laid its slate before the board.提名委员会把候选人名单提交全体委员会讨论.Please copy this nomination form for nominating more than one buyer.请复印此表格作更多买家提名.They offered us a good spot at the nominating convention.他们提...