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R为四甲撑 、 五甲撑或六甲撑.用英语怎么说？

R为四甲撑 、 五甲撑或六甲撑.

R is tetramethylene, pentamethylene, or hexamethylene.

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。
相关例句
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.
Stories of his heroism resounded through the country.
他的英雄故事传遍全国.
The fatliquoring and the results show the leather after fatliquored with hexadecyl phosphate presents and waterproof.
以十六醇为原料,经五氧化二磷磷酸化后合成了十六烷基磷酸酯皮革加脂剂.
The newly hewn steps were too narrow to tread in comfort.
新砌的石级窄窄的,搁不下整脚.
But now the Hessian wakes, cutting off heads where he finds them.
现在黑森人醒了, 砍掉人们的头.
Selecting parents with medium genetic distance may probably gain stronger heterosis.
在亲本选配时,应选择遗传距离中等偏大的材料.
Objective : To investigate HIV infection status among heroin addicts in Liuzhou city.
目的··: 了解我市吸毒人群HIV感染的情况.
She's hesitant about signing the contract.
她对是否签这个合同还犹豫不决。
Mirella approached him and, after a brief hesitation, shook his hand.
米雷拉走近他，犹豫片刻后，和他握了握手。
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。
In a moment Hesper stood before him.
不一会儿,海淡帕出来站在他的面前.
He finally accepted hesitantly.
他最终犹犹豫豫地接受了.
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.
Heron also translated much of the Greek geometrical algebra into arithmetic and algebraic processes.
Heoom又把不少希腊的几何代数法翻译成算术和代数步骤.