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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。
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For example, in the design of antenna, it is always involve the imaginaries Bessel function, so these work are belonged to the base research work, but it is important.
本文对各向异性介质偶极天线辐射场的数值计算的研究以及各向异性介质波参数的数值计算的研究目前还没有文献系统介绍,但这些内容对进一步研究探地雷达辐射场的规律是必不可少的,尤其是传播常数,它在探地雷达的研究中仍然是一个非常重要的公式,对其的深入研究有利于对探地雷达资料的正确解释。
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It is for example in beautiful cure net, having a column is dispel blain is divided imprint, inside the article of this column, should appear only the keyword of dispel blain respect, when our backstage adds an article, can add to these words exceed a link, link dispel blain to divide imprint, the person that can let flow not only so understands the more knowledge of a large number of related sides, OK still and effective addition PV quantity.
在文章内容中加入适量的图片:首先就能丰富整个页面,能让文章图文并茂,如果一直是单纯的文字,容易让浏览者出现视疲劳;其次是能增加文章的长度,这样就更容易实现文章的分页,以前做网站的时候没有怎么做分页,结果PV和IP总是差不多,后来看到好多大的相关网站都这样的处理了,就在现在的这个网站实践了,前期的的效果还不错!
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I loved the law school classroom: the stripped-down nature of it, the high-wire act of standing in front of a room at the beginning of each class with just blackboard and chalk, the students taking measure of me, some intent or apprehensive, others demonstrative in their boredom, the tension broken by my first question-"What's this case about?"
我深爱法学院的教室:它朴素的结构,在每堂课开始时,我站在教室前,面前只有黑板和粉笔,心里七上八下地想着应该如何来讲课;学生在估摸我的脾性,其中一些专心学习或者在理解我教课的内容,其他人则表现出他们并没有被教课所吸引,我的第一个问题打破了紧张的气氛--&这是个与什么有关的案子?&
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MacArthur gives full consideration to the feelings of homesickness of the troops, Thanksgiving Day, he specially ordered, the front-line forces must be prepared for a dinner, the dinner must have a cocktail, roast turkey plus a small public acid jam, sweet potato and fruit salad And so on. 23 that day, although the war is not over yet, far away can hear the sound of rumbling, but the front-line U.S. troops are enjoyable, one of the festive atmosphere.
麦克阿瑟充分考虑到了部队的思乡情绪,在感恩节那天,他特地下令,前线的部队必须准备一顿丰盛的晚餐,晚餐内容必须有鸡尾酒、烤小公火鸡加酸果酱、红薯和水果色拉等物。23日那天,尽管战争还没有结束,远处还可听到隆隆的炮声,但前线的美国部队却是其乐融融,一派节日的气氛。
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However, physics in space has not changed the contents of microgravity science.
近些年来,在微重力环境中进行基础物理研究涉及到许多重大的基础物理课题,引起了国际理论物理界的关注,并被称为空间的基础物理学;进而,各国的空间局逐渐将微重力科学称之为空间的物理学,但空间的物理学并没有改变微重力科学的基本内容。
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However, physics in space has not changed the contents of microgravity science.
近些年来,在微重力环境中进行基础物理研究涉及到许多重大的基础物理课题,引起了国际理论物理界的关注,并被称为空间的基础物;进而,各国的空间局逐渐将微重力称之为空间的物理学,但空间的物理学并没有改变微重力科学的基本内容。
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However, physics in space has not changed the contents of microgravity science.
近些年来,在微重力环境中进行基础物理研究涉及到许多重大的基础物理课题,引起了国际理论物理界的关注,并被称为空间的基础物理学;进而,各国的空间局逐渐将微重力科学称之为空间的物理学,但空间的学并没有改变微重力科学的基本内容。
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Your second question proves that you are totally fooled by the Priest who organised the Church and created some stories and take advantages on all human beings by the name of God that is monopolised by their exclusive rights to interpert the natures and characteristics of so called God.
但相信我的出生、就证明了我对母亲的信任、事实上,有必要在这里大费周章的解释吗?提出「上帝」的是发帖人 passbyhk。若不是他先提出这、我也不会回应。我虽然有将圣经内容写出来、但我有说过我有去过教会教堂吗?别说你不能证明、面对一个教徒、我自己也不能证明我有去过。因此、你「怀疑」的这些、可以免去了。我可没有兴趣讨论神是否存在。
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Firstly it takes for example the lack and loss of taking student as the main of education in such respects as seeking short-term success and quick profits and attending to trifles and neglecting essentials in siting Chinese teaching goal; paying too much attention to the basic knowlegde and skill and ignoring the humane intension; stressing teacher" s instruction to student"s participation; the long unimplemented position of student as main body in teaching relation.
本文对此从以下四个方面进行了论述:首先从当前中学语文教育的现状出发,列举了主体性教育缺失的四种现象,主要有在语文教育目标的定位上急功近利,舍本求末;在语文教学内容上重&双基&教学,忽视人文性内涵;在语文教学的方法上重教师讲授轻学生的主动参与;在师生关系上学生主体地位没有真正得到落实。
- 推荐网络例句
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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。
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Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。
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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。