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Meanwhile, analyse whether to have difference of every factor on the characteristic of the demographic parameter or not.

同时，使用差异性分析观察人口统计变数特性对各变数是否有显著差异。

Model of water supply networks dynamic simulation is finished through analysis of parameter simulation and characteristic of big city.

深入分析了供水管网动态模型校核方法和影响模型精度的各种影响因素，探讨了简化模型校核过程的原则和方法，在深入剖析灵敏度分析法、解析法和解非线性方程组法等校核方法优缺点的基础上，提出了"最优化方法"作为供水管网系统动态模拟模型校核的基本方法，并以天津市供水管网170个实测点的实测数据对模型进行了校核，使模型达到了预定的精度要求，同时也证实了模型校核方法的适用性。

In this paper,a software reliability Jelinski-Moranda growth model for group data which is tested in software reliability test is set up,and the characteristic of parameter solutions of this model is discussed.

摘 要 针对软件可靠性测试的成组测试数据，建立了适用于成组测试数据的软件可靠性Jelinski-Moranda增长模型，并对其参数解特性进行了分析。

Fibrous root systems are characteristic of monocotyledons.

须根系是单子叶植物的特征。

When a petty rose seed is planted into soil. we don't give it a rebuke due to its characteristic of no root or stalk.

一粒小的玫瑰花籽被植入土壤时，我们并不因为它"无根无茎"而加以批评。

A new definition, expectation of soil moisture content (E/ cm·g·g-1), was introduced in order to reflect better characteristic of soil moisture in root zone.

引入土壤含水率期望的概念，建立了含水率期望值与根系分维值之间的函数关系，并求出了适宜胡杨生长的土壤含水率期望值的范围。

In the poetry "intertextuality" is no longer merely "rewriting" or "the second version". It should describe the evolution of the classic work and the diversity of "intertextuality" should be root in the characteristic of the texts.

在(来源：A2bBC论文网www.abclunwen.com)诗集中"互文性"不再仅仅是原著的翻版或重写，而是描述了一部作品和它自己以及和其他作品所形成的关系的变迁，互文的互异性深融于文本的个性中。

Numerical simulating of the regulation was made. The mathematics model of water movement and the experience model of water absorbing were constructed for tomato, basing on the study on the characteristic of its root distribution. Movement of soil water was simulated, and the front of nitrogen was forecasted, using the piston flow model.

根据温室滴灌西红柿的实际情况，在对西红柿根系分布特征的田间试验分析的基础上，建立了滴灌西红柿水分运动数学模型和西红柿根系吸水经验模型，对田间土壤水分动态进行了模拟，运用简化的氮素运移活塞模型对土壤中氮素溶质锋面进行了预测。

By analyzing the form and growth characteristic of the soybean root, this paper discusses the virtual modeling method on the soybean root based on L-system and implements the algorithm using Visual C++.

传统的大豆研究方法具有试验周期长和环境因素难以控制等缺点，而利用计算机技术建立

In the experiment, wheat (NongDa 189) plants were grown on a sand culture in a greenhouse. Relationship between leaf area and characteristic of root branching of winter wheat seedlings were studied, In addition, effects of phosphorus deficiency on leaf area, root morphology and measuring methods of root architecture were studied.

试验选用农大189号小麦为试验材料，进行温室内砂培试验，研究了冬小麦苗期积温、叶面积与根系分枝之间的关系，并探讨了磷胁迫对冬小麦苗期叶面积及其根系构型参数(主轴数量、长度、直径等)的影响，结果表明： 1。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。