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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
Please don't hurt me again, otherwise i'll heartrending hurt.
请你不要再来伤害我,我会难过, 心象被撕碎一样.
His promotion is Bound to cause much heartBurning.
他被提升肯定会招致许多妒忌.
Hence the enlightened ruler is heedful , and the good general full of caution.
故明君慎之,良将警之.
'I thought you were bringing it.' — 'Heavens, no.'
“我以为你会带来的。”——“天哪，不会吧。”
Some 300 trees have been ranged along the perimeter hedge.
沿着绿篱栽种着大约300棵树。
Is that Brad Pitt, the Hollywood heartthrob? I believe so.
布拉德·皮特是好莱坞最令人心跳的英俊小生,是 吗 ?我想是的.
Their crackling bad humour left them, but the heaviness of their spirit remained.
他们的怒气平息了, 但心情仍很沉重.
HEIFER saw an Ox hard at work harnessed to a plow.
小母牛看到公牛套着工具辛苦的犁地.
He ate heartily but would drink only beer.
他敞开胃口大吃，却只喝啤酒。
You wear hector's cloak.
偷鸡不着蚀把米.
Heigh - o the derry - o, Three mice a sock.
嗨,噢, 三只老鼠在袜子里.
I think I will make a re - heatable dinner for Jessica's family.
我想我要帮杰西卡的家人做份晚餐,以便他们热一下就能吃.
She is warm-hearted and kind to everyone and everything.
她对每个人每件事都很热心、宽厚。
The lighter version used liquid hydrogen, the heavier used hypergolic propellants.
较轻的推进器采用液态氢, 较重的采用自燃推进剂.