英语词汇“journeyman clock”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

a. Astronomy. More fully, journeyman clock: a secondary clock in an observatory, used generally as an intermediary in the comparison of standard clocks.

ΘΚΠ

the world > time > instruments for measuring time > clock > [noun] > secondary clocks > in an observatory

journeyman1765

1765 Philos. Trans. 1764 (Royal Soc.) 54 373 I fixed up a little clock there, which may be called a journeyman or secondary clock, having a pendulum swinging seconds.

1787 J. Smeaton in Philos. Trans. (Royal Soc.) 77 330 (note) The journeyman clock was generally set to the transit clock on Sunday mornings... The journeyman will generally agree with the transit clock to 2´ in 24 hours.

1890 J. Service Sk. Jas. Dunlop in Thir Notandums 162 The journeyman employed was compared with a sidereal clock.

单词	journeyman clock
释义	> as lemmas journeyman clock a. Astronomy. More fully, journeyman clock: a secondary clock in an observatory, used generally as an intermediary in the comparison of standard clocks. ΘΚΠ the world > time > instruments for measuring time > clock > [noun] > secondary clocks > in an observatory journeyman1765 1765 Philos. Trans. 1764 (Royal Soc.) 54 373 I fixed up a little clock there, which may be called a journeyman or secondary clock, having a pendulum swinging seconds. 1787 J. Smeaton in Philos. Trans. (Royal Soc.) 77 330 (note) The journeyman clock was generally set to the transit clock on Sunday mornings... The journeyman will generally agree with the transit clock to 2´ in 24 hours. 1890 J. Service Sk. Jas. Dunlop in Thir Notandums 162 The journeyman employed was compared with a sidereal clock. extracted from journeymann. < as lemmas
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> as lemmas