记时计 meaning in Chinese

chronaximeter
chronograph
chronometer
chronoscope

Horology . wrist watches chronometers
钟表业.手表记时计
Chronometer ; wrist chronometer with piezo - electric oscillating system , designation , requirements , testing
精密记时计.第2部分:带有压电振荡系统的手表式精确记
Chronometer ; wrist - chronometer with frequency of oscillating system 1000 hz , designation , requirements , testing
精密记时计.第1部分:带有振荡系统频率1000hz的手