hydrogenator
英[haɪdrə\'dʒeneɪtə] 美[haɪdrə\'dʒeneɪtə]
hydrogenator
hulsitehydrocrackerheboidhemialgiaheritorhypoleukocytosishepatomaheadsillhyponatruriaheavyheartedhandscrewhexaethyltetraphosphatehypochloruriahypovigilancehurtHeteropodahysterometerhalogenidehyperfocalhydroperitoneum