hydrogeniumn.氢气hydrogenn.氢hydrogen fluoride chemical laser氟化氢化学激光器hydrogen embrittlement mechanism氢脆机理hydrogen discharging performance放氢性能hydrogen sulphide spring therapy硫化氢泉疗法Hydrogen storage electrode alloy储氢电极合金hydrogen sulfide production test硫化氢试验hydrogen plasma-metal reaction氢等离子体电弧法hydrogen-cooled turbogenerator氢冷式涡轮发电机hydrogen peroxide hemolysis test过氧化氢溶血试验Hydrogen and oxygen are gases.氢和氧是气体。