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marine chronometer

查词链接:https://www.dute.org/dict/marine_chronometer复制链接
航海时计
船钟
查看英英释义
abstract:
A marine chronometer is a clock that is precise and accurate enough to be used as a portable time standard; it can therefore be used to determine longitude by means of celestial navigation. When first developed in the 18th century, it was a major technical achievement, as accurate knowledge of the time over a long sea voyage is necessary for navigation, lacking electronic or communications aids.

网络释义
航海时计
... 航海时计 marine chronometer; nautical chronometer 停港航海时间比 ratio of port time to sea time 大上海时代广场 shanghai times square ...
航海天文钟
...佣价:747,750瑞郎 大索点评:芝麻链传动、冲击式擒纵、筒状游丝、超大口径的摆轮,如果说追求Marine Chronometer(航海天文钟),那么这只足够了。这是一枚将航海钟完整缩小的航海计时怀表,再加上其历史意义,如果在估价之内获得,值得庆祝!
精密航海记时器
... 精密记时器 precision timer ; chronograph 精密航海记时器 marine chronometer 恒星时记时器 siderograph ...
航海天文台时计
... MANUFACTORY (表厂) MARINE CHRONOMETER (航海天文台时计) MINUTE-COUNTER SWITCHING (精确跳分积分盘) ...
常用短语
* 以上查询结果来自于网络,仅供参考。
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