hydrogenide氢化物
hydrogenn.氢
hydrogen type mixed bed氢型混床
hydrogen-bonded dimer氢键二聚物
hydrogenated polybutene氢化聚丁烯
hydrogen chloride laser氯化氢激光器
hydrogen ion test paper氢离子试纸, pH试纸
hydrogenated base Stock加氢基础油
hydrogen desulfurizaion加氢脱硫
Hydrogenated terphenyls氢化三联苯
hydrogen peroxide plant双氧水装置
hydrogen gas surge drum[化] 氢气缓冲罐