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By analyzing the molar fraction of St and MAh in the copolymers obtained from 〓C spectra, the copolymers obtained are proved to be strictly alternating structure, and sequence information obtained from DEPT experiments also verifies the copolymers with MSM sequence.

通过分析〓C NMR得到共聚物中St和MAh摩尔含量，证明共聚物具有严格交替结构，从DEPT实验中得到的结构信息表明共聚物只含有MSM序列。并且探讨了可控聚合反应的机理。

An unexpectedly large fraction of players acted altruistically to protect their weaker friends.

远远超出人们的预料，有很大一部分玩家在游戏中无私地保护那些弱者朋友。

One surprise was that players put themselves into risky situations more often than epidemiologists allow for in their models. An unexpectedly large fraction of players acted altruistically to protect their weaker friends. On the other hand, a significant number seemed intent on infecting as many other characters as possible—behaviour reminiscent of a small minority of people with AIDS.

一个惊奇的发现是，玩家比流行病学家的模型更易于将自身置于危险境地，在保护弱者朋友时表现出利他行为的玩家异乎寻常的多，另一方面，有相当数量的玩家似乎在尽心竭力地感染尽可能多的其它游戏人物——这使我们联想到少量艾滋病人的行为。

Especially aiming at the asymmetric structure of the cast, the allocation of aluminous liquid during the filling process was presented and the concept of structure mass fraction was inducted.

针对铸件的不对称结构提出了充型过程中铝液的分配问题，引入结构质量分数的概念。

Compared to Ambler , they are cheaper to launch into space by a factor of 1000; thus, sending hundreds of mobots is a fraction of the cost of one large robot.

和 Ambler 相比，他们的发射到太空的费用便宜1000倍；这样一来，即便发射数百个的成本也只是一个大机器人的很小一部分。

This paper studied the antioxidation of polysaccharide fraction AGP-3 from Ampelopsis Grossedentata in vitro.

研究了藤茶多糖组分AGP-3的体外抗氧化活性。

ConclusionThe polysaccharide fraction AGP-3 from Ampelopsis grossedentata is a kind of conjugated polysaccharide containing protein.

结论藤茶多糖分离组分AGP-3为一种含蛋白质的复合多糖。

The polysaccharide fraction AGP-3 was obtained and analyzed preliminarily after water-soluble polysaccharides from Ampelopsis grossedentata being isolated and purified.

目的对藤茶水溶性多糖进行分离纯化得到AGP-3组分，并对其结构进行初步的鉴定，为藤茶多糖结构与生物活性关系的研究奠定基础。

The kinetics of tertamyl methyl ether synthesis using C5 fraction of FCC gasoline was studied. The molar ratio of tertiary amylene to methanol was 1.0 and the kinetic experimental data was obtained at the temperature range from 55℃ to 90℃.

研究了FCC汽油中C5馏分合成甲基叔戊基醚的宏观动力学。C5原料与甲醇摩尔比为1/1，在温度分别为55℃~90℃时反应得到了动力学实验数据。

It has been reported that low level of amylose corresponds to increasing quantities of fraction Ⅰ eluted.

有研究报道认为低的直链淀粉含量与洗脱出的组分Ⅰ的含量上升有关。

When I started coding, I had problems with the ASF file writer.

当我开始编码，我曾与ASF文件作家的问题。

I know that in one of the schools the boys have risen up in the classroom and enlisted in a mass.

如果你们也和他们一样，是集体自愿的话，你们的老师将是多么地光荣啊。