用来测定速度的仪器是速度计.The instrument that measures the speed is a speedometer.速度计显示时速达120英里.The speedometer was touching 120 mph.速度计指示着每小时95英里.The speedometer was indicating 95 mph....
本公司是一家专业从事自主研发高性能荧光灯电子镇流器的生产厂家.Our company specializes in producing electronic ballasts of efficiency fluorescent illumination products.为了保证机壳内部空气流通,提高散热效率, 请垂直放置镇流器.To ensure ventilation and raise cooling efficiency, pl...