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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。
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
Herod in Jerusalem impatiently awaited the return of the wise men.
希律王在耶路撒冷等候博士们回来,等得不耐烦了.
Hew out of the West branch manager Huang said.
满堂红西槎分店黄店长如是说.
roughly hewn timber frames
粗劈成的木架子
Characteristics: white glossy hexahedron crystal or white crystalline powder.
特性: 白色有光泽六面体结晶或白色结晶性粉末.
As far as these paradoxes are concerned, the garden definitely a heterotopia.
就这些吊诡性而言, 花园无疑地是个异质空间.
Objective To summarize the recent therapeutic effects and operating method of tension free hernioplasty.
目的探讨无张力疝修补术的手术方法和近期疗效.
The key step was a substrate controlled asymmetric heteroatom conjugated addition.
关键反应为底物控制的不对称杂原子共轭加成反应.
Their dogged single-mindedness is almost heroic.
他们不屈不挠专心致志的劲头简直是一种壮举。
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.
In tropical areas, larger plots have proved more useful due to greater heterogeneity of the forest.
在热带地区, 由于森林的异质性较大,已证实大一些的样地更有效.
Second Aunt lived in Green Bamboo Hermitage , her house in Golden Swallow Village.
金燕村, 就是二姑姑的村;菜竹山房就是二姑姑的家宅.
The coherent combination of multi - Hermite - Gaussian beams is proposed to describe the flat - topped beams.
提出了用多束厄米高斯光束相干合成产生平顶光束的方法.
Referee Michael Reed had no hesitation in awarding a penalty.
裁判迈克尔·里德毫不犹豫地判了点球。
Heterochromatic areas tend to stain intensely during interphase, sometimes forming condensed masses called chromocentres.
异染色质部分在间期有染色很浓的倾向, 有时形成浓缩的块状,这些块状叫做染色中心.