Chronometer
01
精密计时器, 精密时计
a timepiece that shows the time in a very exact way, especially one used at sea
例子
The chronometer's accuracy was tested regularly to maintain its reliability for professional use.
为了保持其专业使用的可靠性，精密计时器的准确性被定期测试。
The navigator relied on a marine chronometer to determine the ship's longitude during the voyage.
航海家依靠航海天文钟在航行中确定船只的经度。
