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orbit n.1.【天文學】軌道;【解剖學】眼窩,眶;(鳥或昆蟲的...

orbit trajectory

As another example the center of mass of the earth and moon moves in an approximately circular orbit around the sun . 作為另一個例子,地球和月亮的質心就是在一個繞太陽的近似的圓軌道上運行。

Though it is popular to speak of the moon as a dead world, an orbiting cinder, scientists are not so sure . 雖然人們通常都說月球是一個死的世界,一團環繞軌道運動的溶滓,科學家可不那么斷定。

If a satellite can one day be put into orbit round mars , scientists will be able to find out a great deal . 如果有一天,人造衛星能被發射到圍繞火星的軌道上去,科學家們將會發現很多情況。

It is in this sense that an astronaut orbiting the earth in a space capsule is said to be “weightless“ . 就在這種意義上,宇宙飛行員在宇宙密閉小艙里,環繞地球飛行時被說成是“失重”了。

If accretion takes place in eccentric orbits as well, the rotation will be prograde and of the right order of magnitude . 如果吸積發生在偏心軌道,則自轉將是正向的,且快慢也合適。

It was in this tenement that the personality of my father first came fully into the orbit of my concern . 就是在這所住房,爸爸的為人才第一次完完全全進到跟我有切身利害的圈子里來。

Its frequency is an integral multiple of one-half the classical frequency of revolution of the electron in the bound orbit . 其頻率為在束縛軌道上電子旋轉的經典頻率之半的整數倍。

Finding planets orbiting barnards star would increase our confidence that planetary systems are common . 對環繞巴納德里旋轉的行星的發現將會增強我們認為行星系是普遍存在的信念。

Another characteristic of the sun-earth system is the gradual procession of the equinoxes and solstices along the orbit . 日-地系統的另一特點是二分點和二至點沿軌道逐漸前行。

If the field changes slowly, we can replace the time integral by a line integral over the unperturbed orbit . 如果場緩慢改變,我們能夠用未擾動軌道的線積分來代替時間積分。

Another characteristic of sun-earth system is the gradual precession of the equinoxes and solstices along the orbit . 日地系統的另一個特點是二分點和二至點沿軌道逐漸運動。

The particle motion is elliptical retrograde in contrast to elliptical direct orbit for surface waves on water . 質點的運動是橢圓倒轉,而不是象水上的面波那樣的橢圓正轉。

The planets occupy orbits that are regularly spaced according to a pattern first noticed by bode . 行星動行的軌道在空間的位置是有一定規則的,波特首先注意到了這種規律性。

Very accurate predictions of planetary orbits require corrections to the central-field approximation . 想要非常準確地預言行星的軌道,就需要對中心場近似進行修正。

The acceleration may in turn be obtained from the velocity of the satellite and the radius of the orbit . 這個加速度又可根據衛星的速度和它的軌道半徑來求得。

First, we know that the planets all orbit close to the earth's orbital plane, the ecliptic . 首先,我們知道所有行星的軌道都很靠近地球的軌道平面黃道面。

The first geostationary communications satellite, known as early bird, went into orbit in 1965 . 人們所知道的第一個地球同步通信衛星“晨鳥”是1965年發射的。

As a companion star orbits its primary, it alternately approaches and recedes from the earth . 當伴星圍繞著主星運轉時,它交替地朝著地球或背離地球運轉。

The shuttle went into orbit on schedule to enable it to circle the earth at least once . 航天飛機已按預定時間進入軌道,從而使它至少能繞地球運行一周。