时间记录,守时;
英文例句/中文翻译:
ultra-precise navigation, tracking of deep space probes -- there are a lot of applications to this high precision timekeeping.
超精确的导航,跟踪深空探测——许多高精度的计时应用。
horology. timekeeping instruments. symbolization of control positions.
计时仪表.检验方位的标识
timekeeping instruments; wrist-chronometers with spring balance oscillator
计时仪表.有弹簧平衡摆的手表