有...条件

It proved that yellow-mutant belongs to the type of absence of chlorophyll; etiolation had relation to the lack of chlorophyll.The biology characteristic of the yellow-mutant cultured in vitro was investigated. The results showed that the mutant behaved etiolation character in different temperature and illumination time condition.

在离体培养条件下，探讨了桑树黄化突变体的生物学特性，发现在不同温度及光照条件下均表现黄化特征，证明该突变体叶色黄化与否与温度变化无关，不属于温敏型或光敏型叶色突变体，但突变体的黄化程度受温度影响而有一定的变化。

An approximation method of queueing networks in series with exponential servers with buffers, Poisson arrivals and block ing is presented.

本文讨论产品以Poisson过程到达，有K道加工工序，每加工点是有限容量且服务服从指数分布带受阻的排队网络，并给出了平稳条件和在平稳条件下以三节点组合逼近方法得到平均队长。

The simulation results show that the stability augment controller has good stability under three kinds of designing conditions and it can track the external input command rapidly and soundly. It is also able to inhibit the external disturbance quite well.

仿真结果表明，所设计的鲁棒控制器在理想条件和受干扰条件下均具有良好的稳定性，而且均能很快很好的跟踪外部输入指令，对系统不确定性都有很好的鲁棒性，能很好的抑制外部干扰。

When the boundary condition described above applied, we found that there's almost no influence on pattern styles, however, influence on pattern distribution.This study can simulate concentric eyespot and wave stripe along the boundary of wing in Nymphalidae, besides, we can also simulate smaller and non-regular wave pattern which distributes over the wing.

本研究最后结合以L系统字串重建的翅脉与涂林系统，配合不同系数并将重建之翅脉作为边界条件进行蝴蝶斑纹形成研究，发现边界条件对我们所使用的四种涂林系统所产生的斑纹型态没有显著影响，但对斑纹分布则是会有一定程度的影响。

The former can be divided into fee simple absolute, fee dsimple efeasible, fee tail, life estates and concurrent estates.

现实所有权又根据是否有主体、时间、条件的限制被分为绝对所有权和附条件的完全所有权、终生所有权、限定继承所有权及共有权。

Effect of charge and molecular on flocculent performance of Polyacrylamide and cationic PolyvinylformamideC...

研究结果表明：(1)pH值对废水的色度、浊度以及电荷性质有很大的影响，从而对絮凝剂的絮凝性能产生影响；(2)C-PNVF在酸性条件下，电荷密度越低絮凝效果越好：中、碱性条件下，则相反；(3)分子量对各种电荷性质的PAM的絮凝性能的影响规律各不相同。

So it has made the great progress. The method studied in this research from o-Dichlorobenzene is a ideal route to synthesize 2,4- dichlorofluorobenzene, which has temperate condition easy to control,safe process,low cost and good quality of products; The method of Phase transfer catalysis fluorination without solvent is better than present technology in presence of DMSO as solvent in many aspects; In a word,it is worth being promoted by the domestic correlative factories.

本课题所研究的以邻二氯苯为原料的2，4-二氯氟苯合成路线反应条件温和，工艺容易控制，生产安全，而且产品质量好，是比较理想的合成路线；以季胺盐为催化剂的无溶剂相转移催化氟化法与溶剂法相比具有明显的优势；通过实验确定的工艺条件对工业化生产有重要的指导意义，可提高以邻二氯苯为原料的工艺路线的市场竞争力。

According the connection between the solution of linear fractional differential equation and nonlinear fractional differential equation, the expression of the solution of the nonlinear fractional differential equation is formed.

在一定的条件下，建立了非线性分数阶微分方程在边值条件下有解存在。

The primary contents are as follows:(1) Based on the fundamental seepage physical equation, the basic differential equation of saturated-unsaturated seepage in porous mediums has been deduced, in which the pressure head is the fundamental unknown quantity.

总体说来，本文主要从以下几个方面开展了研究：(1)由基本渗流物理方程出发，以压力水头为基本未知量推导多孔介质三维饱和—非饱和渗流微分方程，在此基础上分析了边坡在有降雨入渗条件下渗流的定解条件和计算模型。

Here we found the optimum situation to determine LAP: the concentration of Tris-HCl is 125 mmol L^(-1) and the optimum pH is 7.2, temperature is 37℃, under this condition, Michaelis constant is 0.15 mmolL^(-1), ground substance concentration is 6.0 mmol L^(-1), with 157 health people serum samples (81 from male, 76 from female),x± s=35.7 UL^(-1)±8.2 UL^(-1), we established the method and reference value for clinical application and automatic analysis.

测定亮氨酰氨基肽酶的最适条件：选用浓度为125mmolL^(-1)的Tris-Hcl缓冲液，最适pH为7.2，温度取37℃，得出在此实验条件下的米氏常数Km为0.15mmolL^(1)，亮氨酰对硝基苯胺浓度取6.0mmolL^(-1)，取健康体检者血清157例（男81例，女76例），测得x±s为35.7UL^(-1)+8.2UL^(-1)，建立了适合于临床应用及有动生化分析仪的方法和参考值。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。