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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。
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
...heavenly beings whose function it is to serve God.
侍奉上帝的天使
Do something hedonistic: think afternoon at a spa or going out dancing.
做一些享受的事情: 想想下午去洗个温泉浴,或者去外面跳一支舞.
The child was heinously murdered.
这个孩子被残忍地杀害了.
That clock is a family heirloom.
那个座钟是祖传下来的.
For example , the sunflower belongs to the species Helianthus annuus.
植物的属名和种加词都要用拉丁文和斜体印刷.
This new clause may hearten domestic opponents of moves dictated from Brussels.
这个新的条款可能让受制于欧盟的国内反对阵营振奋人心.
Tom Thumb and Hunca Munca went cautiously across the hearthrug.
汤姆大拇和亨卡忙卡小心翼翼地穿过壁炉前的地毯.
The war games announcement is expected to futher heighten the nuclear dispute.
预计这将进一步加剧核争端.
He adopts his niece as his heiress.
他指定他的侄女为继承人.
Only the heel and rabid younger officers wanted to continue, and even they were heartsick.
只有一部分骄横不可一世的少壮军官想要继续打下去, 但是就连这些人也不免气馁了.
They black heifer chalk , said ,'she is white , Bos cretatus. "
他们替一头小黑牛抹上石膏粉, 便说: “ 你已经白了. ”
Scotland has about 800 islands, including the Orkney , Shetlands and Hebrides.
苏格兰有800座岛屿, 包括奥克内群岛,谢特兰群岛和赫不里德群岛.
What is an heiress doing with a CPA?
艾蕾歌和个注册会计师在一起干 什么 ?
The corridors there were painted chocolate-brown to shoulder height.
那里的走廊从地面到齐肩高的部分都漆成棕褐色。