all about welding and differences between tig and mig welding Plasma rarely occurs naturally on the surface of the earth, but it can on occasion, in t...
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其他好文 时间：
2014-09-02 10:11:54
阅读次数：
369
1 counter-intuitive 不符合直觉n 2 insight 洞悉，深入了解n eg. The project would give scientists new insights into what is happening to the earth’s atmosphere.该项目将...
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其他好文 时间：
2014-08-29 12:50:57
阅读次数：
199
Our whole universe was in a hot dense state,Then nearly fourteen billion years ago expansion started. Wait...The Earth began to cool,The autotrophs be...
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其他好文 时间：
2014-08-29 12:35:37
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220
Description
The desire to explore the unknown has been a driving force in human history since the dawn of time. From the earliestdocumented accounts, ancient civilizations had explored the earth by...
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其他好文 时间：
2014-08-27 13:00:27
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256
StatusEach street light can be viewed as a point in a plane,which casts flash in a circular area with certain radius.What's more,if two illuminated ci...
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其他好文 时间：
2014-08-12 02:58:43
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289
Earth HourTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 125536/65536 K (Java/Others)Total Submission(s): 1518Accepted Submission(s): 607Problem ...
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其他好文 时间：
2014-08-12 00:01:43
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415
Description
J
Save from Radiation
Most of you are aware of Nuclear Power Plant Explosion at Fukushima after devastating earth quake and tsunami. Many people in Bangladesh ...
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其他好文 时间：
2014-08-11 21:24:43
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252
Earth Hour
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 125536/65536 K (Java/Others)
Total Submission(s): 1516 Accepted Submission(s): 606
Problem Description
Earth Hour is a...
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其他好文 时间：
2014-08-11 15:12:52
阅读次数：
298
Problem Description
Earth Hour is an annual international event created by the WWF (World Wide Fund for Nature/World Wildlife Fund), held on the last Saturday of March, that asks households and busin...
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其他好文 时间：
2014-08-10 15:50:20
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265
引用 Shape文件转为KMZ并在Google Earth中显示（1）在ArcGIS中加载一个Shape文件，笔者加载的是某个地区的道路（双线道路）图层（2）在ArcToolbox中，依次展开Conversion Tools—>To KML—>Layer to KML，（3）双击Layer to K...
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其他好文 时间：
2014-08-07 18:10:00
阅读次数：
303
