Murchison followed with his eye the hand of his chronometer.莫奇生的眼睛追随着他的时计的秒针.The chronometer - maker's expert hand plays an essential role in this process.生产精密时计的专家们的手工调试在这一工序中起着关键性的作用.It is use in navigation, chron...
The chronometer - maker's expert hand plays an essential role in this process.生产精密时计的专家们的手工调试在这一工序中起着关键性的作用.a chronometer on a ship船上的精密仪记时计It is use in navigation, chronometer, and weather and so on.用于导航 、 天文和气象等领域...