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R is tetramethylene, pentamethylene, or hexamethylene.是什么意思？

R is tetramethylene, pentamethylene, or hexamethylene.

R为四甲撑 、 五甲撑或六甲撑.

相关词汇
is pentamethylene or hexamethylene

is

vt.& vi. 是（be的三单形式；n. 存在；

pentamethylene

--

or

conj. 或，或者，还是，不然，否则，左右；prep. <古、诗>在…之前，比…更早；n. [纹章]黑金色、黑色；

hexamethylene

n. 环己；
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。
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Single parents cope heroically in doing the job of two people.
单身父母扮演双亲的角色非常辛苦。
Hew out of the West branch manager Huang said.
满堂红西槎分店黄店长如是说.
Any mathematical algorithms must be supplemented by heuristics.
任何数学算法必须由直觉来补充.
Thousands of herring and crab are washed up on the beaches during every storm.
每次暴风雨过后海滩上都会留下数不尽的鲱鱼和螃蟹。
Yes. I copy from Torres, from Santos Hern á ndez and Hauser.
我模仿托雷士, 山多士·赫南德兹和豪瑟.
Objective To analyze CT appearances of gray matter heterotopia ( GMH ).
目的　分析灰质异位症 ( GMH ) CT表现.
But Herodotus is too alluring a companion for one who would write an outline of History.
但是对于要编写一部史纲的人来说,希罗多德是个过于引人入胜的同行.
Hexachlorophene is a commercially available germicidal agent especially used newborn nursery for prevention of infection.
六氯丁二烯是一种常见的抗微生物剂,广泛运用于市面上,以消毒杀菌.
Objective a method for determination of hesperidin in Muxiangshunqi pills by HPLC.
目的:采用HPLC测定木香顺气丸中橙皮苷的含量.
The game did not hest up until the second half.
比赛到下半场时才激烈起来.
There is a heterogeneous mass of papers in the teacher's office.
老师的办公室里堆满了大批不同的论文。
If you cold sores ( facial herpes simplex ), use a sunblock to protect your skin.
如果你患有唇, 涂防晒霜来保护皮肤.
Stories of his heroism resounded through the country.
他的英雄故事传遍全国.
Chromosome material with exhibits of such behaviour is called heterochromatin.
表现这种现象的染色体物质叫做异染色质.