片语
Chinese ancient calculagraph中国古代计时器
high accurate calculagraph高精度计时器
sports calculagraph秒表
photo-electricity calculagraph光电计时系统
running time meter[仪] 计时器
warn calculagraph报警计时器
photoelectricity calculagraph光电计时仪
shot clock计时器;定点投篮,投球时限
VHDL CalculagraphVHDL计时器
electromagnetic shooting point calculagraph timer电磁打点计时器