safety key meaning in English
加强链
Examples
- Safety key elements and manage reform of cement production process
水泥生产工艺中的安全要素及管理改进 - A five function computer timer , includes speed , distance , time , calories and cant angle degrees . safety key . the key switch is a small clip attached to a sensing cable
五视窗豪华电脑显示器，可显示a跑步板倾斜角度数值b时间c速度d距离e卡路里的消耗量