变化范围

Owing to Wei-Norman decomposition＇s application being confined in a little time area, in order to obtain the Unitary evolution matrix at any time, a small division of time is proposed in this paper, and Wei-Norman decomposition is used in every small division to obtain the unitary evolution.

由于Wei-Norman分解适用的范围是小时间变化的邻域，为了求出量子系统在任意时刻的幺正演化矩阵，根据量子系统的特性，提出了对量子系统的控制时间进行分段，利用Wei—Norman分解来获得每段小时间的幺正演化矩阵。

Since near a century ,with the expanding population and advancement of the technology ,people strengthen the domanial using continuously, and lead enlarging the range of use and adding the intensity of use land constantly,for the satisfying increasing demand of people oneself. Changed the upper configuration ,circle of biological physics and chemistrys and balance of biological species and leading change of the global climates and decrease of biological species which can not rverse .

近一个世纪以来，随着人口的膨胀和技术的进步，人类为了满足自身日益增长的需求，不断加强对土地的索取，致使土地利用的范围不断扩大、土地利用强度不断加深，从而改变了地表的形态、生物物理、化学循环及生物物种的平衡，造成了全球气候的显著变化和生物物种不可逆转的减少。

Variable gain amplifier is an analog circuit, which varies gain, adjusts signal dynamic range and stabilizes signal power.

可变增益放大器是模拟单元电路之一，起着变化增益、调整信号动态范围、稳定信号功率的作用。

The results show that it is successful to simulate DSC experiments curves and we can determine the variation of aggregation number n as a function of temperature.

我们成左獐甡壎XDSC实验曲线，并且可以得到整个扫瞄温度范围之聚集数n与温度的变化关系。

The changes of hemodynamics and VAS in group A were more significant than that in group B.

结果：一组中有3例病人未能按预定完成手术，二组均能顺利完成手术，术中SPO2均在正常范围内，一组的血流动力学变化显著性差异。

Following population growing and human activity bigger and bigger, the distribution of wild vascular bundle is gradually changing in Beijing.

随着北京地区人口的增多，人类活动范围越来越大，野生维管束植物的分布也逐渐发生了变化。

Such as: how to better play to high-performance concrete properties; how to avoid temperature changes, shrinkage and creep of concrete, foundation, uneven settlement and so on; how to ensure that close up before the end of the vertical deflection of the cantilever 2 and the main beam axis deviation of the lateral shift does not exceed the permissible range; how to ensure that folded after the bridge linear positive; how to avoid the construction of the main beam and so there have been a big stress.

如何更好地发挥高性能混凝土性能；如何避免温度变化、混凝土收缩徐变、地基不均匀沉降等的影响；如何保证合拢前两悬臂端竖向挠度的偏差和主梁轴线的横向偏移不超过容许范围；如何保证合拢后的桥面线形良好；如何避免施工中主梁截面出现过大的应力等。

The intercourse problem becomes very important in the modern society as the extent of the intercourse is more and more wider and the object and the style of the intercourse is vertiginous along with the rapid development of the information industry.

尤其在现代社会，信息化的程度越来越高，人们的距离逐渐缩小，交往的范围越来越广，人们的交往对象和相互作用模式不断发生变化，交往问题对于现代社会显得尤为重要。

It can be seen that China's capital market has undergone a great change. Besides China's stock market and bond market, there are many kinds of venture in－vestment funds and direct investments from abroad.

可以看到，中国的资本市场发生的变化是很大的，除了中国的股票市场、债券市场外，来自外国的风险投资基金、外国直接投资等资本的种类还是很多的，中国资本市场的范围在不断拓宽。

A given type of relay element can usually be wound for a wide range of setting currents; the coil will have an impedance which is inversely proportional to the square of the setting current value, so that the volt-ampere product at any setting is constant.

一个定型的继电器元件通常根据整定电流可大范围变化来绕制的，线圈阻抗与电流整定值的平方成正比，因此在任一整定值下伏安数是恒定的。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。