Because the free space quantum key distribution plays a significant role in building the global quantum secure communication network by satellites in future, it is necessary to study the effects of the atmospheric channel on photons carrying the key information while propagating in free space.

On the basis of essential principle of similar forecast, using element distribution in time and space, key area over 500hPa 、 100hPa anomaly as the main similar factor, design objective scheme about similar forecast.

根据相似预报的基本原理，以气象要素场的时空分布和500hPa、100hPa距平场的关键区作为主要的相似因子，设计相似预报的客观化方案。

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As time and space are key elements in the narrative of novels, the means of handling time and space adopted by writers often mirror their specific views on life and aesthetic interest.

时间和空间是小说叙事的重要元素，作家对时空的处理方式背后隐着其特定的人生观念和审美趣味。

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Subsequently, security analysis has been made for the proposed algorithms from the aspects of key space, key sensitivity, plaintext sensitivity, and statistical property.

随后本文从密钥空间、密钥敏感性、明文敏感性、统计特性等几个方面对提出的两种算法进行了安全性分析。

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Thirdly, the company can create value space for key accounts by professional value, including easy cooperation, quickly responding and well customer relationship management.

第三，企业可以通过专业化价值因素&包含容易合作、迅速回应和培养关系三个方面，为大客户创造价值。

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Phase-modulated free space quantum key distribution

相位调制自由空间量子密钥分配

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Finally, we find out that any improvement in above factors can create value space for key accounts.

最后，本文认为对上述三个因素的任何改进都可以为大客户创造价值。

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Study on the Space Localization Key Technology of Micro-Polishing Robot Based on Vision Measuring

微小研抛机器人空间定位的视觉测量关键技术研究

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Discussion on Development and Utilization of Underground Space in Key Areas in Beijing Town Center

北京中心城重点地区地下空间开发利用研究

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Application of fiber-optic gyro in space and key technology

光纤陀螺的空间应用及其关键技术

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Operate guidebook: Use the mouse ambulation carries on an attack, the blank space key fills to play a medicine, the purpose does not let the iron bottle drop down.

操作指南：使用鼠标移动进行攻击，空格键填充弹药，目的是不让铁罐落下来。

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Operate guidebook: Mouse the left key shoot, move, the blank space key can pause, can choose bullet or reinforce star etc. while appearing red arrowhead under.

操作指南：鼠标左键射击、动，空格键可暂停，下方出现红色箭头时可选择子弹或加固星球等。

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Operate guidebook: The keyboard ↑↓ controls the gunning angle of the cannon, press down → the dint, the blank space key shoot.

操作指南：键盘↑控制炮的射击角度，按住→力，空格键发射。

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It emphasized convenience and rationality, especially about relocation of Back Space key, layout of edition-orientation block and number-assistance block.

在整体布局上更加注重操作方便性与合理性，尤其体现在Back Space键的重新布置、编辑与定位键区和数字辅助键区的按键布局上。

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The game operate: The mouse controls a direction, press the blank space key beginning, mouse the left key take aim at trapshooting.

游戏操作：鼠标控制方向，按空格键开始，鼠标左键瞄准飞碟射击。

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There is relative complementary in space key element and developed area;

空间要素方面与发达区域却有着相对的互补性；

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Purpose BE jump up appearance under of wooden board, rise to jump a method easy, demand presses the blank space key then.

目的是跳上画面下方的木板，起跳方法很简单，只需要按一下空格键即可。

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Carry on an operation with the blank space key and cursor, BE a quite good game!

用空格键和光标进行操作，是一款不错的游戏！

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By using plant materials and combining instruments and ways of gardens, it organizes, perfects, beautifies its interior space and assorts with man and environment.

它主要是利用植物材料并结合园林常见的手段和方法，组织、完善、美化它在室内所占的空间，协调人与环境的关系。

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Everyone on the bus smiled at the intelligence of the dog in making space for the blind man and, at the same time, making a place for himself.

巴士上的人们对导盲犬的聪明发出会心的微笑，它不仅为盲人找到了地方，同时也为自己找到一席之地。

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Forty-five years ago Apollo 11 became the first space flight to let man on the moon.

45年前，“阿波罗11号”成为首个登上月球的载人飞船。

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