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Fatigue cracking is one of the major modes of premature distresses in asphalt pavements. Cracks of asphalt pavements start as microcracks and later propagate, densify, and coalesce due to repeated traffic loading or low temperature thermal stresses or combinations of both to form macrocracks, and result in structural distresses of asphalt pavements.

疲劳开裂是沥青路面主要的早期破损形式之一，由于交通荷载和低温应力的反复作用，沥青路面中的微裂纹不断扩展、增密并贯穿连通形成宏观裂纹，导致。。。

And the problem of "detune"existing in backward mode couple is resolved. So the reliability of the coupled laser system can be improved remarkably. At the same time, by using two copper vapor lasers with UR90s of M=1. 21 or AOUR90s of M=1. 5, the coherency beam combinations are implemented.

首次提出将多个UR90腔进行正向模耦合来产生多束相干的激光的方法，解决了以往采用反向模耦合方法中存在的失谐问题，可以大大提高耦合激光系统的可靠性。

Large degree of variation in growth performance and hetercsis were found among different cross combinations of 6×6 diallel cross of Pines massoniana.

马尾松6×6全双列杂交的不同组合，其11年生子代在生长性状及其杂种优势上均存在较大的差异。

In this study, analyses of yield combining ability, SSR molecular markers was made to study in 198 combinations which come from different strains in the basic S1 66 plants of 39007 and 39002 groups and three types of tests in Incomplete Diallel Cross Experiments.

以39002和39007群体不同基本株的S166个单株及其与3个测验种按不完全双列杂交试验设计组配198个组合为供试材料，对单株产量的配合力和供试群体S1的多态位点数，基因杂合度等参数进行了分析，并利用遗传相似系数进行聚类。

On the basis of DDRT-PCR technique we found that:Total of 331 differential displayed cDNA bands from 1161 were displayed in the 4x4 diallel cross combinations with 30 pairs of primers, which shows the differences of gene expression between hybrids and their parental lines were very obvious in quantity and quality.

采用mRNA差异显示技术和荧光定量反转录PCR技术，从随机mRNA差异显示和候选功能基因mRNA表达定量分析两个方面，研究了32周龄杂种鸡及其亲本纯种的基因差异表达及其与繁殖性状杂种优势的关系，探讨了鸡繁殖性状杂种优势形成的因素及其分子遗传机理。

But after much tinkering with different combinations of detergent, ions, and chemical additives, Strynadka's team was able to crystallize the enzyme so that it would diffract x-rays into a pattern that would ultimately reveal its natural structure.

但是在多次与不同结合物去污剂、离子和化学添加剂等组合后， Strynadka 小组终于能够使该酶结晶，以至能经过 x 光衍射成图像，最终显示它的本来结构。

Disclosed are certain moisture curable prepolymers formed by the reaction of diphenylmethane diisocyanate with conventional polyether polyols to produce sealants and coatings exhibiting excellent combinations of physical properties; most notably high tensile strength, high tear resistance, and high elongation.

公开了通过二苯基甲烷二异氰酸酯与习用的聚醚多元醇反应形成的某种湿固化的预聚物，以生产显示杰出综合物理性质(最显著的高拉伸强度、高抗撕裂强度和高伸长度)的密封胶和涂料。

A new trigatron with a discal trigger electrode has been tested on its trigger characteristics.And the effects of different polarity combinations,trigger pulse amplitudes and trigger resistances on trigger characteristics of the trigatron have been derived.

对采用盘状触发电极的新型触发管开关的触发特性进行了实验研究，得到不同极性组合、不同触发电压幅值和不同触发电流条件下开关的触发特性实验结果。

First, the existence of contract depends on the dividable and transactional nature of property right, results in the different combinations of rights.

合约的存在依赖于产权的可分割性和可交易性。

First, the existence of contract depends on the dividable and transactional nature of property right, which results in the different combinations of rights.

合约的存在依赖于产权的可分割性和可交易性。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。