出现一次的

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。

It will be the 20-year-old's first appearance at Devonshire Park, on the south coast of England, and she is set to be the top seed.

这将是20岁的安娜第一次在英格兰南海岸的Devonshire公园出现，她也将是大赛一号种子。

That made it five straight games with a homer for A-Rod, but, ho-hum, he's done that two other times in his career.

这一轰使他连续5场比赛都有红不让的表现。。。但是，噢。。不止。。他之前也出现过2次这样的表现。。。。。

It first appeared in September 1939, by a Times newspaper reporter.

他的第一次出现是1939年9月，由泰晤士报的一位记者使用。

The computer is a product of advanced civilization and its invention, according to some people, signals the advent of a Second Industrial Revolution.

计算机是一种产品的先进文明和发明，根据一些人的信号出现一个第二次工业革命。

As you can see, designing a land is not as easy as it might first appear.

如你们所能看到的，设计一张地绝对不像它们第一次出现的那样。

In each case the setting will be the first notch of its type in the slider.

每一想设置都是指该状态在滑动条的第一次出现的位置

When already feeling the search may be stopped beforehand, he decides to do his best again go going all out, the body that this brings about him appeared problem, amount to 100 times to office heartbeat / minute and the bosom is frowsty, add excessive watch computer, got serious xerophthalmia, look suddenly sometimes not clear any words.

在已预感到搜索可能会被停止时，他决定再尽最大努力去拼一下，这导致他的身体出现了问题，一到办公室心跳就达100次/分钟并且胸闷，加上过度看电脑，得了严重的干眼症，有时突然看不清任何字。

According to the anomalous effects of the test such as component deformation as a result of the repeated transverse impact,a fault elimination test method of equivalent simulation for cycling hammering is established,which adopts the theory of "equivalent actual response,and inequivalent actual stimulus".

在新型火炮增程弹药适配试验中出现引信异常失效，针对回收零件呈现受过多次横向冲击的变形等异常效果，建立了一种&等效实际响应，不等效实际激励&的等效模拟循环锤击故障排查试验方法。

There was conspicuous contradiction appeal between water supply and demand in the Yellow River basin in 1997 because of much less precipitation and runoff than nounal and no-flow in the lower reaches in 1997 was the most serious in the records.

1997年，由于黄河流域降雨、径流量较常年明显偏少，水资源供需矛盾十分突出，黄河下游出现了有资料记录以来断流最为严重的一年，利津站于2月7日开始断流，截止到12月31日，断流13次，共计226d，与有记录以来的历史资料比较，呈现出断流开始时间最早、恢复过流时间最晚、断流河段最长、断流次数最多、断流时间最长等特点。

In her eyes, because that is the doorway toher heart * the place where love resides.

女人的漂亮必須從她的眼睛中去看，因為那是她心靈的窗戶和愛居住的地方

I will send some postcards to you.

我会向你发送一些明信片。