特性态

Natural transformation: The appearance competent cell is physical characteristic of special growth page.

1自然转化：感受态的出现是细胞一定生长阶段的生理特性的转化。

It is also the base of structure optimization.According to main object characteristics of structural dynamics design,structuraleigenveetor sensitivity computation is,first,be studied.A Neumann series expansionmethod is proposed in accordance with the modal method and is developed to agreewith the structure with rigid body modes.A rapid Neumann series expansion methodfor eigenvector sensitivity is formed;it may greatly improve the efficiency ofcomputing eigenvector derivation.

本文根据结构动力学设计的主要目标特性，首先进行了结构特征向量灵敏度分析研究：形成了计算特征向量灵敏度的Neumann级数展开法，并将其扩展到适用于具有刚体模态的结构特征向量灵敏度分析；研究出计算特征向量灵敏度的快速Neumann级数展开法，该方法大大提高了特征向量灵敏度分析的效率；建立了无需K-1运算的结构特征向量灵敏度分析的共轭梯度迭代法。

The analogue results obtained from the water turbine in Gezhouba have been used by the author in his evaluation of the vibration characteristic of turbine blade and a nomographic chart indicating the relationshi...

作者将葛洲坝水轮机叶片模态分析结果，应用到叶片振动特性的估价中，绘制了转速及其派生的频率，卡曼涡频率与叶片固有频率关系的诺模图，可供设计参考。

A semi－empirical tire model of non－steady state cornering characteristics is presented,based on a theoretical non steady state tire model.

在轮胎非稳态转向特性理论模型的基础上，本文提出了一种半经验模型。

Since batch operation of MRCRS can be applied easily and extensively in production process, a kind of non steady—state microbial reaction coupled with a complete cell recycle separation process is emphasized and analyzed. This dynamic process was characterized by which cells were retained completely by the recycle separation process without purge stream.

五 鉴于微生物反应一循环分离耦合过程的间歇操作在生产过程中极易使用，本文还分析了分离过程对细胞完全截留且没有任何洗脱流存在的非定态的微生物反应一完全细胞循环分离耦合过程的操作特性及其优化。

Based on the single-axis air-bearing test bed, three experiment schemes are creatively designed for investigating the behaviors of rigid-flexible coupling dynamics:(1) experiment scheme for structural dynamics problem under a non-inertial frame,(2) experiment scheme for rigid-flexible coupling dynamics with unknown large overall motions,(3) experiment scheme for modal analysis of a typical rigid-flexible coupling system.

为了能更深入地揭示刚柔耦合动力学特性与验证本文提出的一次近似模型的正确性，最后重点介绍了我们在单轴气浮台动力学仿真实验平台基础上，经过多次探索和总结，创造性地设计的三套刚柔耦合动力学实验方案：(1)非惯性系下结构动力学问题的实验研究方案，(2)大范围运动为自由的刚柔耦合动力学问题的实验研究方案，(3)刚柔耦合系统模态分析实验方案。这三套方案从实验的角度来讲是可行的，这为下一步的实验工作打下了基础。

Dynamic analysis shows that the system can get stable commutating voltage to attain the load-commutation if there is no nonperiodic transient current component in the rotor.

动态特性分析表明，只要不出现转子暂态电流，系统可获得稳定的换流电压而实现负载换流。

Based on fuzzy feature that the concrete crack width affects concrete structure durability, the membership function that the crack width belongs to the durability failure is established, the calculation method of fuzzy probability about structure durability failure is submitted, and classifing standard of the sturucture durability state is proposed, In accordance with the stochastic nature that cracks on concrete bridges occur and grow, and by assuming that crack occurrence obeys nonstable Poission process, predicting and evaluating methods about future crack condition and durability state of concrete bridge structures are suggested.

依混凝土裂缝宽度对混凝土结构耐久性影响的模糊特性，建立了裂缝宽度隶属耐久性失效的隶属函数，提出了结构耐久性失效的模糊概率计算方法，并建议了结构耐久性状态的划分标准；针对混凝土桥梁裂缝发生、发展的随机性，以裂缝的发生服从非稳态的泊松过程的假设为前提，提出了混凝土桥梁结构裂缝未来状况及耐久性未来状态的预测评估方法。

Because of the possibility characteristics of images, the planar normal distribution function was adopted to present the pertinence of pixels accurately and reasonably.

考虑到图像的概率特性，通过引入二维正态分布函数，准确合理地表示图像像素间的相关性。

The validity of simulation results were tested by experiments. Through statistical analysis, the parameter (μ,σ2) of normal distribution function of the maximum load, and tested uniformity of the normal population and the sample were obtained.

在此基础上，随机生成200个典型海底地形，对采矿头截齿最大载荷的分布特性进行研究；应用置信度为0.95的柯尔莫哥洛夫斯米尔诺夫(Kolmogorov-Smirnov)检验验证参数估计所得的正态总体与样本数据的一致性。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！