查询词典 fragment

At last,based on the traditional cluster-cluster aggregation model we introduce acritical cluster size and a breakup exponent that depends on the fragment sizes in thereversible and irreversible cluster-cluster aggregation processes.

在第六和第七章中，我们研究了临界集团的大小对可逆和不可逆集团聚集过程标度行为的影响。我们知道，在一般的CCA模型中，只要二个集团通过扩散碰到一起，它们便融合成一个更大的集团。

With the aeciospore wall of armandii pine blister rust as inducer, chitinase gene was induced to express in Trichoderma atroviride cells. The cDNA fragment of chitinase gene was cloned by RT-PCR approach.

方法］采用华山松疱锈病的锈孢子壁作为诱导物，诱导深绿木霉SS003中几丁质酶基因的表达，并通过RT-PCR方法扩增得到几丁质酶基因片段。

Effects of Hg2 on agamogenesis of Egeria najasWhen Hg concentration was above 1.50mg/L, leaf of shoot fragment faded severely, compared to the control even the sprout also faded much.

Hg2 浓度l 。oom留L实验组中的侧枝新芽长度随着Hg2 浓度的增加而缩短，平均新芽长度在】。ocm以下。

The complete ORF of Polygonatum roseum agglutinin gene was amplified as a fragment of 550 bp, which was identical with predicted size.

序列分析表明，克隆获得的新疆黄精凝集素(Polygonatum roseum agglutinin， PRA)基因完整的ORF 片段大小为550 bp，编码1条长159 个氨基酸肽链，没有内含子，其中N 端的28 个氨基酸是信号肽。

Special fragment;Agouti gene;origin;differentiation

特殊片段；Agouti基因；起源；分化

The results indicated that the special fragment existed in different regions of the agouti gene of Capra hircus and Ovis aries, but not in the agouti gene of Bos taurus.

但结果表明，这个特殊片段存在于山羊和绵羊agouti基因的不同区域，而不存在于牛的agouti基因上。

Two new point mutations were found in this fragment,and the only mutation in coding region of goat Agouti gene was analyzed again,so we named these 3 mutations were named as follow:399C＞T,128delT and 5701G＞T.

其中，5701G＞T的突变引起了山羊Agouti信号蛋白125位上氨基酸的改变。

Firstly, one of the two key intermediates, tetrahydrofuran fragment with aterminal alkyne 27, was prepared from D-glucose utilizing a multiple-step sequencedeveloped by us earlier.

在本组过去的工作基础上，我们从葡萄糖出发，获得了含有四氢呋喃环的炔化合物27。同时，从木糖及炔丙醇出发，获得了一端为γ内酯环的烯基碘化合物14，即C1-C13片断。

The object of projectile design is analyzed, and the layer-TOPSIS method is provided for the evaluation of total effectiveness by taking the layer concept into the TOPSIS method. In the calculation of object weights, the grade calculation method is suggested, which has less dependence on the subjectivity of decision-maker and can take account of both sensitivity and allowableness of objects, the geometric-arithmetic method is provided for grade weight calculation and methods for sensitive weight and allowable weight are given. Of modes in system analyzing, the penetration model of target with spherical-fragment is carried out based on the theory of Dynamic Spherical Cavity Expansion, and it is a supplement of the models for calculation the damage of the fragmentation warhead to target.

对弹丸设计进行了目标分析；通过在TOPSIS方法中引入层次结构的概念，提出了适用于弹丸总体效能评价的层次TOPSIS评价方法；在指标权重计算中，提出了对决策者主观依赖较少的能反映指标的敏感性和相容性的分级权重计算方法；在分级权重计算中，分别给出了等比-等差权值计算方法和敏感-相容权值计算方法；在系统分析的模型中，对破片战斗部的威力计算中的模型进行了补充，在空穴膨胀理论的基础上提出了球形破片侵彻有限厚靶板的侵彻计算模型。

Since the production of carbon nanotubes synthesized by arc-discharge method contains impurities such as carbon nano-particles, amorphism carbon and graphite fragment, several purification methods were used to purify carbon nanotubes. It is found that with oxidation method in air, we can easily get purified carbon nanotubes.

由于用电弧放电法合成出来的纳米碳管产物中除了有纳米碳管外，还含有一些纳米石墨颗粒、无定形碳和石墨碎片等，因此本文对用电弧放电法合成出的纳米碳管进行了多种方法、探索性的提纯研究，实验结果发现，利用大气氧化法对纳米碳管进行提纯效果好，设备简单，是一种方便实用的方法。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。