hardenv.(使)变硬;(使)坚强
hardening tongs硬化钳
hardening index硬化指数
hardening layer淬硬层
harden the nedkvi.变得顽固
hardened system加固系统
hardened pelvis[医] 硬性骨盆
hardening resin硬化性树脂
hardening ratio硬化率
hardening steel淬硬钢
harden in heart心肠变硬