Nitempering
气体软氮化; 氮回火
🗣️ 情景例句
Her health is improving markedly.
她的健康正显著好转。
How long will it take for a letter to get to California?
你把信寄到加州要多长时间？
The circle dance seemed to communicate news of food.
圆圈舞蹈好像是传递食物信息。