hack watch造句

例句与造句

1. For navigational purposes, the hack watch is synchronized with the ship's marine chronometer.
2. Mariners would use the chronometer to set a so-called hack watch, which would be carried on deck to make the astronomical observations.
3. McManus was awarded the 2004 " Hack of the year " mock award by Hack Watch, an independent blogging site, for the article.
4. They were used to set a hack watch for the actual sight, so that no chronometers were ever exposed to the wind and salt water on deck.
5. Though not as accurate as the chronometer, the hack watch is accurate enough to be satisfactory over the relatively short time period between setting it from the chronometer and taking the sight.
6. It's difficult to find hack watch in a sentence. 用hack watch造句挺难的
7. Hack watches are used on ships for astronomical sights for navigation and to synchronize the actions of personnel who may not be in direct communication ( for example, personnel engaged in a military mission ).
8. Though much less accurate ( and expensive ) than the chronometer, the hack watch would be satisfactory for a short period of time after setting it ( i . e ., long enough to make the observations ).
9. One estimate puts the number of devices being used in North America at 5, 000, while Hack Watch News, a newsletter and Web site based in Ireland, said it expects new decoder cards that cost about $ 150 to enter the market soon.
10. The use of a hack watch makes it easier to take sights, as the chronometer is normally in a fixed position in a ship  below decks and in gimbals to keep it level and protect it from the elements, while the hack watch is portable and can be carried on deck.
11. The use of a hack watch makes it easier to take sights, as the chronometer is normally in a fixed position in a ship  below decks and in gimbals to keep it level and protect it from the elements, while the hack watch is portable and can be carried on deck.
12. The altitude-intercept method of celestial navigation requires that the observer know exact Greenwich Mean Time ( GMT ) at the moment of his observation of the celestial body, to the second since every four seconds that the time source ( commonly a chronometer or in aircraft, an accurate " hack watch " ) is in error, the position will be off by approximately one nautical mile.