hardens

现在分词：

动词现在分词: hardening

更多词形：

动词过去式: hardened | 动词过去分词: hardened | 动词现在分词: hardening | 动词第三人称单数: hardens |

单词例句：

To quench steel is that hot steel is quenched to harden it .

淬钢就是烧热的钢置入水中骤冷使之坚硬。

To render callous or unfeeling; harden.

使麻木；使无感觉；硬化。

The varnish takes a few minutes to harden.

清漆几分钟就能变硬。

Why shall harden steel is annealled?

淬火钢为什么要退火呢?

The same heat that melt the wax, will harden the clay.

热既可熔化蜡，又可使粘土变硬。

Why shall harden steel be annealed?

淬火钢为什么要退火呢?

They harden clay by putting it in a fire .

他们把粘土坯放在炉火里使其变硬。

They harden clay by putting it in a fire.

他们把粘土坯放在炉火里使其变硬。

Insurance rates have harden in the previous years.

前几年保险费率绷得很紧。