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...the velocities at which the stars orbit.是什么意思？

...the velocities at which the stars orbit.

恒星沿轨道运行的速度

相关词汇
the velocities at which stars orbit

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；
例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

velocities

n. 速度( velocity的名词复数 )，高速，快速；
例句
...the velocities at which the stars orbit.
恒星沿轨道运行的速度

at

prep. （表示位置）在，在（某时间或时刻），以，达， 向，朝；n. 阿特（老挝辅币单位，100 阿特 = 1 基普）；
例句
Prices start at £13.95 a metre for printed cotton...
印花棉布以每米13.95英镑的价格起售。

which

pron. 哪一个，哪一些，哪个，那，指前面提到的事物；adj. 哪一个，哪一些；
例句
...the latest date at which a foetus can be aborted.
能够打胎的最迟日期

stars

abbr. specialized training and reassignment students 经过专门训练后再分配的学生，stationary automotive road stimulator (Toyota) 汽车公路固定刺激物（丰田汽车）；n. 星( star的名词复数 )，明星，（尤指旅馆或餐馆的）星级，星象（根据人出生时天体的位置而描述的命运）；
例句
Ptolemy charted more than 1000 stars in 48 constella-tions...
托勒密绘制了48个星座1,000多颗恒星的星位图。

orbit

n. 轨道，势力范围，眼眶，（人生的）旅程，生活过程；vt.& vi. 在…轨道上运行，环绕轨道运
例句
The orbit of this comet intersects the orbit of the Earth...
这颗彗星的轨道与地球的轨道交叉。
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
相关例句
They consummated their passion only after many hesitations and delays.
他们几经踌躇和拖延后才尽情宣泄了激情。
The announcement caused uproar in the crowd...
公告在人群中引起了骚动。
She spends her Easter holidays taking groups of children to France...
她带领一群孩子去法国过复活节。
The shed was secured by a hasp and staple fastener.
棚屋由一个搭钩和U型扣件固定着。
...tropical birds screeching in an aviary...
在鸟舍中尖声鸣叫的热带鸟
The myth that Japan is not open to concerns from outside has, I think, been demolished at a stroke.
关于日本对外界的关注不予理会的谬论，我认为，一下子就被驳倒了。
She turned and gazed at the river, evading his eyes...
她转身凝视着那条河，避开他的目光。
They were using uncommonly flowery language.
他们使用了极其华丽的词藻。
...a slice of lemon.
一片柠檬
The principal range runs east to west.
主体山脉呈东西走向。