四倍的

In the paper, the orientation behaviors of polyurethane film were investigated by means of infrared dichroism measurement.

采用红外二向色性法对聚四氢呋喃醚二醇/ 4 ，4′-二苯基甲烷二异氰酸酯系聚氨酯薄膜样品的拉伸取向行为进行了研究，结果表明，随着拉伸倍率的增大，CH2 角基团发生取向。

He said that after the previous twenty years of rapid development, national urban and rural residential new 24 billion square meters, equivalent to 230 million units, the vast majority of people has been noticeably improved housing conditions, per capita living standards than in the past increased 2.5 times.

他说，在过去二十年的快速发展，全国城市和农村住宅新二百四十万点零万平方米，相当于230万辆，绝大多数的人有了明显改善住房条件，人均生活水平比过去提高2.5倍。

Theother cross section is a pair of hyperbolic cylinder consisting of two four-dimensionalMinkowskian spacetimes, therefore can explain the doubling of degrees of freedomin the real time formalisms.

另一个截面是由两个四维明氏时空构成的一对超双曲柱面，因而可以解释实时方法的倍自由度。

When the torsion field is static, its strength is proportional to the gravitation constant G times the Planck constant h, therefore, it is 10^27 times weaker than the weakest gravitation of the four forces, thus it was not taken seriously.

当挠场静止时，它的强度正比於万有引力常数G乘以普兰克常数h，因此比四种力中最弱的万有引力还弱10^27倍，因此在物理界不受重视。

Earlier this week, the Beijing Daily quoted pyrotechnist Ding Zhenkuan as saying that the display would send nearly 42,000 shells into the sky, doubling the number fired at the Beijing Olympics opening ceremony last August.

本周早些时候，北京日报援引了焰火制造商丁振宽的话说此次焰火展示将会发射四万二千发烟花弹到天空，是去年八月北京奥运会数量的两倍。

We also analyzed the double-frequency technique, and optical resonator theory which could be helpful to design resonator.

第三章和第四章介绍了几种实用于DPL的激光晶体和实用于产生红光的倍频晶体。

In proportion, the base of the head is at least two and aquarter times as wide between the ears as the muzzle.

从比例上看，奇儿阿素犬头部的宽度至少是耳朵到嘴巴宽度的两又四分之一倍。

This thesis aims at the studies on the total synthesis of bicyclic sesquiterpenes and the novel and efficient synthetic strategy of Valsartan, a kind of medicine for hypertension.

本论文以双环倍半萜类天然产物的全合成研究及抗高血压药物——缬沙坦的新合成路线为研究对象，分为以下四部分内容。

At the same time the effection of some important recombinations are discussed and the relation of photoconduction versus time is given. In chapter 4, Auston circuit, blumlein pulse forming line, multiplier of pulse forming line are introduced and give their differentiates.

在第四章中，分析各种以光导开关为核心器件的电脉冲成形电路：Auston电路、Blumlein脉冲成形线、层叠线倍压器，对其输出转换效率进行比较，并进行实验研究。

It is incremented by single error events, with a maximum rate of twice per CRC- 4 multiframe.

这是增量单误差事件，以最高税率的两倍，每华润-四multiframe 。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。