Gossamer is floating in calm air.空中飘浮着游丝.a gossamer justification站不住脚的辩解The Gossamer Conder, a human - powered airplane, flew into aviation history on Aug. 23,1977.1977年8月23日, “飘忽秃鹰”式人力飞机载入了航空史册.A lover may bestride the ...
Plus mannitol to reduce its accumulated in the tubular cells.加用甘露醇可减少其在肾小管中积聚.The physical and chemical property, applications and synthesis processes of mannitol were reviewed.介绍了甘露醇的性质和用途,几种制备甘露醇的原理、工艺条件及研究进展.Mannitol ...