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The polynucleotide chain is helical.是什么意思？

The polynucleotide chain is helical.

多核苷酸键是螺旋形的.

相关词汇
the chain is helical

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；

chain

n. 链子，链条，连锁，连续，拘束，连锁店或旅馆系列的事物；vt. 用铁链锁住，监禁，束缚；

is

vt.& vi. 是（be的三单形式；n. 存在；

helical

adj. 螺旋状的，螺线；
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。
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。
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。
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
Electronics stepless speed regulation , conveyor utilized rotated bar with heatproof tube.
电子无级调速, 输送机构采用自转式输送棒并加耐高温套管.
He had to discuss knotty points of Rousseau and Hegel with her.
他不得不和她讨论卢梭和黑格尔的那些深奥问题.
However, he realized the air of empty - headed heartiness might also mask a shrewd mind.
但他知道,盲目的热情可能使伶俐的头脑发昏.
...heavenly beings whose function it is to serve God.
侍奉上帝的天使
The heathen temple was torn down by a crowd of religions fanatics.
异教徒的神殿被一群宗教狂热分子拆除了.
The last few weeks have been hectic.
过去几周一直忙得不可开交。
If you forgive men their trespasses, your Heavenly Father will also forgive you.
如果你们饶恕他们的过失, 你们的天父也必将饶恕你们的过失.
It's a hard thing to skulk and starve in the heather.
躲在树林里的挨饿不是一件好受的事.
We then headed west towards the heartland of Poland.
我们随后朝西前往波兰中部。
Before independence Vanuatu was an obscure Anglo - French territory known as the New Hebrides.
万那杜在独立之前一直是个不明确的英法领地,也就是常听过的新海布里地群岛.
He pays too much heed these days to my nephew Tom, and Tom is no great thinker.
他最近过分重视我侄子汤姆的话了，而汤姆根本不是什么伟大的思想家。
You can hedge against redundancy or illness with insurance.
可以购买保险以防失业或患病。
He often hel me with maths when I have difficulty in it.
当我学数学有困难时,他经常帮助我.
A hedgehog's spines point backwards.
刺?的刺毛是向后长的.