| 单词 | pendulum clock | |||
| 释义 |
pendulum clock
英汉-汉英词典
摆钟
词组 | 习惯用语
您要查找的是不是：pendulum clock earring 时间表两用耳环 torsional pendulum clock 扭摆钟 second pendulum clock 秒摆时钟 mechanical pendulum clock 机械摆钟 mechanical pendulum clock movement 机械摆钟机芯 mechpericis pendulum clock movement 机械摆钟机芯 pendulum clock [仪] 摆钟 casing for pendulum clock 摆钟外壳
原声例句
万物简史 There, the astronomer Jean Picard devised an impressively complicated method of triangulation involving quadrants, pendulum clocks, zenith sectors, and telescopes for observing the motions of the moons of Jupiter. 在那里，天文学家让·皮卡尔发明了一种极其复杂的三角测绘法，用上了扇形板、摆钟、天顶象限仪和天文望远镜用来观察土星卫星的运动。 PBS趣味科普 Pendulum clocks, they don't keep very good time at sea because motion on the ocean messed with their swings and their metal parts were sensitive to changes in temperature and pressure. 摆钟在海上走时不太准，因为海上的起伏干扰了它们的摆动，并且其金属部件对温度和压力的变化很敏感。 燎源飞轮——9月份 The result was rapid progress in astronomy, physics and other fields, and new inventions from the pendulum clock to the steam engine--the prime mover of the Industrial Revolution. 其结果是天文学、物理学和其他领域的快速进步，以及从摆钟到蒸汽机（工业革命的原动力）的新发明。
中文百科
摆钟  0931.jpg)  摆钟，是使用一个摇摆重的钟摆，靠能的相互转化来摆动，是时钟的一种。1656年由克里斯蒂安·惠更斯发明，取代重力齿轮推动的时钟，直到1930年代都是世界上最精确的计时时钟。 1667年，惠更斯在钟摆上加了1个齿轮，令其更加可靠，但无法在颠簸摇晃的船上使用。最后用1具由两个弹簧推动的摆轮代替钟摆，从而造出航海钟。
英语百科
Pendulum clock 摆钟0932.jpg)   A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element. The advantage of a pendulum for timekeeping is that it is a harmonic oscillator; it swings back and forth in a precise time interval dependent on its length, and resists swinging at other rates. From its invention in 1656 by Christiaan Huygens until the 1930s, the pendulum clock was the world's most precise timekeeper, accounting for its widespread use. Throughout the 18th and 19th centuries pendulum clocks in homes, factories, offices and railroad stations served as primary time standards for sche****ng daily life, work shifts, and public transportation, and their greater accuracy allowed the faster pace of life which was necessary for the Industrial Revolution.
近义、反义、联想词
近义词n.clock
英英词典
pendulum clock n.
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