English translation for "时间信号球"

time ball

Similar Words：

"时间信号" English translation, "时间信号标准频率" English translation, "时间信号弹发射炮" English translation, "时间信号发生器" English translation, "时间信号接收" English translation, "时间信号卫星业务" English translation, "时间信号站" English translation, "时间信息" English translation, "时间形究部门" English translation, "时间形究宽限" English translation