科技小论文500字英语

科技小论文500字英语

EarthDay originally celebrated at Spring Equinox around March 20, is an annualday on which events are held worldwide to increase awareness and appreciationof the Earth’s natural environment. Now Earth Day is coordinatedglobally by the Earth Day Network,and is celebrated in more than 175countries every 2009, the United Nations designated April22 International Mother Earth
最初，地球日是在每年的春分，也就是三月二十号，这一天世界各地都会进行各种活动，希望能够增强人们的环境意识。现金，在同名组织“地球日组织”的协调下，地球日每年都在超过175个国家进行。 2009年，联合国指定每年的四月二十二号为世界地球日。

People are more active doing something which isfriendly to the environment on Earth Day, like saving water, collectingrecyclable waste, reducing the uses of chemical materials which could pollutethe environment, etc..
世界地球日这一天，人们会更加主动地去做一些有益于环境的事情，例如，节约用水，回收可再回收利用的废物，减少可能造成环境污染的化学物质的使用等等。
Nowadays our world is highly developed with the improvementof technology. The wide use of technology helped us build factories,laboratories, mines, dams and all kinds of facilities which are supposed to dogood to the mankind. And of course they have brought and are still bringing usbenifits. But in the meanwhile they are causing and will be keeping causingserious environmental problems, such as all kinds of pollutions, the damage tothe ozonosphere and so on. And with the growing population of mankind, We areacctually ravaging the living condition of other species, which would cause theimbalance or even collapse of the ecosystem.
现今，科技的发展带来了整个世界的高度开发。在科技广泛应用的帮助下，我们建立了各种各样的工厂，实验室，矿场，水坝以及其他所有的能够给人类带来益处的设施。这些设施在带给我们利益的同时，也对环境产生了严重的影响，例如，各种形式的污染，对臭氧层的损伤等等。同时，人类人口的增长，我们也在不停地掠夺其他物种的生存环境。这很有可能造成生态圈的失衡甚至是崩溃。
Acctually we can treat everyday as the Earth Dayand be aware of environmental protection all the time. In which way, our motherearth could be protected and she would be able to support us much longer.
其实，我们可以把每一天都当做世界地球日，每天都有意识地保护环境。这样，我们才能够保护我们的地球，她也能够更长久地养育我们。

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The authors develop and test a multiclassifier-based near-real-time face detection system based on the premise that a three-part strategy is necessary for designing real-time face detection systems that provide high detection rates. The critical factors for real-time face detection are based on a framework of multiple classification functions: (1) a skin classification function is used as the preliminary stage in order to prune the search, localize the computation, and therefore improve performance time; (2) subsequently, three coarse-to-fine statistical model based classifiers are used to scan the windows and discard most non-face windows; and (3) finally, faces and non-faces are veri�0�3ed from images. The bagging ensemble algorithm (bootstrap aggregating) is also applied to improve the performance of detection rates.

如何写一篇科技论文 英语作文 300字

inmesthisfeelingseemstobeoneofindifference,butitisaconventionofcitylifetocurbone‘ersaunitiesforbrightyoungpeoplearegreaterinthecitiesandtherehasbeenasteadystreamofhopefuljobseekersfromthevillagesandfarmstothelargemetropolitanareas.城市生活和乡村和农场生活大不相同。大城市的人更注意尊重个人隐私。有时候这种感觉似乎是一种冷漠，但是它是城市生活的一个约俗，以遏制一个人对陌生人的个人事务的好奇。村民和农民有可能所有的邻居对表现出极大的兴趣。城市给聪明的年轻人提供了机会，来自村庄和农场的求职者有往大都市发展的稳定趋势