hardshipn.艰难;困苦
hardlyadv.几乎不;简直不;刚刚
hardnessl硬度
hardnessplug硬度塞
hardness gage硬度计
hardness plug硬度塞
hardness test硬度试验
hardness ions硬性离子
hardness peak硬度峰
hardness limit硬度极限
hardness gauge硬度计
hardness level硬度等级