marine chronometer

The problem was not solved completely until the invention of the marine chronometer in the eighteenth century.

这个问题之道十八世纪发明了航海经线仪才得以解决。

词典精选例句

Without a reliable measure of longitude, seafaring explorers, naval and merchant vessel captains had for centuries never been sure of their exact location while on the high seas. Thousands of lives and many vessels were lost as a result, until Harrison's breakthrough invention of the marine chronometer.

没有可靠的经度测量，航海探险家、海军和商船船长在几个世纪内都无法确定自己在远海的准确位置，无数生命和船只因此魂断汪洋，直到哈里逊突破性地发明了航海天文钟。

互联网摘选