hydrogeniumn.氢气
hydrogenn.氢
hydrogen-like donor impurity施主杂质
hydrogenation cracking reactor加氢反应器
hydrogen-producing acetogens产氢产乙酸菌
hydrogen penetrating materials透氢材料
hydrogen inner-cooling system氢内冷系统
hydrogen-bond acidic polymers氢键酸性聚合物
hydrogenation refining catalyst加氢精制催化剂
hydrogen-rich combustible gas可燃气