hydrogengel水凝胶
hydrogenn.氢
hydrogen acid ester氢酸酯
hydrogenation taste氢化余味
Hydrogen-enhanced氢气添加
hydrogen blistering【冶】氢爆皮,氢鼓泡
hydrogenation plant加氢装置
hydrogen resistance阻氢
hydrogen generation制氢
hydrogenation rosin氢化松香
Hydrogen Combustion氢气燃烧
hydrogen recombiner氢气复合器