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Experimental accuracy and repetition of FBG temperature sensitivity and compensation were discussed.have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber;have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of FBG wave-length, have obtained the first step conclusion;have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes.

本文所做的主要工作包括以下几个内容:一、选取了常见的热膨胀系数大的材料制作封装元件,经过多次一80℃到80℃反复测试,封装元件没有出现老化开裂、封装裂纹、空洞、离层等缺陷,封装材料具有良好的温敏稳定性及复用性,与光纤相容性较好;二、对光纤光栅进行简单、实用的封装处理,就封装效果的优劣性、波长测量的准确度、重复性和封装时产生的波长损失等方面进行了一系列的实验,得出了初步的结论;三、对温敏和温度补偿式封装的实验数据进行了详细的分析和对比,从数字上对温变过程中光纤光栅中心波长的改变及温变曲线进行了定量的分析,在大量实验数据分析结果的基础上,总结出哪种材料封装效果更好,以及如何有效的减小实验误差。

In 1889, after a series of crack-ups in reaction to Theo's marriage or perhaps just too much absinthe?

1889年,在一系列的精神打击下(是对于提奥婚姻的反应,还是仅仅是过量的苦艾酒?

In the middle of the 18th century,on account of the serious financial crisis,the French Absolute Monarchy was forced to carry out a series of reforms.

18世纪中叶前后,面对严重的财政危机,法国的绝对王权政府被迫推行了一系列改革。

The definition of the absolute value for a fuzzy number is obtained.Furthermore,a lot ofproblems,such as absolute integrability,bounded variation and absolute continuity,arepresented and discussed.The representation theorem of the absolute values of fuzzy num-bers is established.It plays an important role in discussing the problems conceming theabsolute value.The relation between the absolute integrability and integrabili-ty is discussed,and the following result is obtained:aintegrable fuzzy-number-valued function is absolutely integrable iff it is integrable.The relation between theabsolute integrability and the absolute continuity of the primitive for fuzzy-number-valuedfunctions is dealt with.It is also pointed out that a fuzzy number valued function is ab-solutelyintegrable if and only if its integral primitive is fuzzy absolutely continuous.

提出了模糊数绝对值的概念并讨论了与绝对值相关的一系列问题,如绝对可积性、有界变差性、绝对连续性等,给出了模糊数绝对值的定义以及表示定理,该表示定理在涉及绝对值问题的讨论中起非常重要的作用;讨论了绝对可积与可积之间的关系,得到了结论:可积的模糊数值函数绝对可积的充要条件是该模糊数值函数可积;给出了模糊数值函数绝对可积与其积分原函数绝对连续性之间的关系,指出模糊数值函数绝对可积的充要条件是其原函数模糊绝对连续。

Experimental study on performance of the plate absorber was carried out after the experimental system was finished.

在完成实验台搭建的基础上,对平板式吸收器的工作性能进行了一系列测试。

The curve of absorption is mirror symmetry of that of emission.

对荧光染料染色样进行了一系列的实验和测定。

To assess the importance of quasar outflow we have performed a series of studies on broad absorption line quasars, and have obtained the following results.

为了确定外流的重要性,中国科学技术大学天体物理中心开展了宽吸收线类星体的一系列研究,取得了一些进展:(1)宽吸收线区的紫外吸收物质的柱密度比原来预计高出2个量级,低电离吸收线形成于饱和的高电离吸收线区;(2)射电宁静的宽吸收类星体吸收物质主要在赤道面,并且不同的源吸收物质分布情况很不相同,而在射电强的类星体中,赤道和极向外流都是可能的;(3)共振散射线偏振表明,外流物质携带角动量。

"Mathematics Curriculum Standard" kind of teacher role research the abstract our country's mathematics education has own superiority, however, along with society's development and science and technology progress, in our country mathematics education also inevitable appearance a series of questions.

我国的数学教育有着自身的优势,然而,随着社会的发展和科学技术的进步,我国数学教育中也不可避免的出现了一系列问题。

ABSTRACT This dissertation proposes a number of extended theories of stochastic Petri net and other algorithms to evaluate the performance of various computer networks.

本文提出了一系列随机Petri网的扩展理论和逐次迭代逼近算法,从理论分析角度深入分析了各种计算机网络的多项性能指标。

Simultaneously, the academe has made a series of research and discussion.

同时,学术界也已经针对审批制度改革展开了一系列的研究和讨论。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力