Hydraid多性电解质助留剂(商品名)
hydran.(希腊神话中的)九头蛇;难以根除之祸害;水螅Hydra.n.长蛇星座
Hydrazine propulsion system of satellite卫星肼推进系统
hydration-pre-germinating-dehydration吸湿-预萌发-回干
hydration and hydrogenatio of acrylaldehyde丙烯醛水合加氢法
hydraxyproply guar /borate fracturing fluid硼交联羟丙基瓜尔胶压裂液