chronometer

US /krəˈnɑː.mə.t̬ɚ/
UK /krəˈnɑː.mə.t̬ɚ/
"chronometer" picture
1.

精密計時器, 天文鐘

an instrument for measuring time, especially one designed to keep accurate time in spite of motion or variations in temperature, humidity, and air pressure.

:
The ship's captain relied on the chronometer for precise navigation.
船長依靠精密計時器進行精確導航。
A marine chronometer is essential for determining longitude at sea.
航海天文鐘對於確定海上經度至關重要。