 Wysłany: Pon 11:15, 28 Lut 2011 Temat postu: |
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| 01、在网站的URL中出现关键词；
02、在title中出现1-3个关键词； 03、在keyword中出现1-3个关键词； 04、在description中主关键词重复2次； 05、内容页中很自然地出现关键词； 06、内容页首段和尾段出现关键词； 07、H1、H2、H3标签中出现关键词； 08、图片的文件名最好包含关键词； 09、图片的ALT属性中出现关键词； 10、对关键词进行加粗或斜体。 先写这么多，虽简单但很有效，本空间原创，希望对各位新手站长有所帮助。 本人小站：http://www.kelego.com 空间里没有一篇文章，今晚有点时间有点兴趣，来写点东西吧。 SEO是每个网站站长必须要做的事情，现根据本人经验，总结几条有效的页面优化方法： Many years ago there lived an Emperor who was so exceedingly fond of fine new clothes that he spent vast sums of money on dress. To him clothes meant more than anything else in the world. He took no interes related links： 名言 |
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| Wysłany: Pią 11:00, 18 Lut 2011 Temat postu: OBD history and features |
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| OBD is a short from on-board diagnostics system. It can test the vehicle exhaust system oxygen sensors and other related parts in use, and thereby prompt the driver to repair in time. United States in 1988, first in California, leaders of the OBD I, and in 1994 regulations implementing the OBD II . Europe is implemented from 2000 after an increase of Euro III OBD functional inspection, known as the EOBD (europe on-board diagnostics), EOBD requirements are not strictly as the OBD II in United States, the two emission limits is not the same. Because of different test cycles,there are not comparable.
OBD main function is to monitor actual use of vehicles with emission control components related to the state, including the engine, catalytic converter, oxygen sensors and other components, resulting in deterioration of vehicle emissions when a certain alarm to the driver, and the corresponding fault code and the freeze frame data for storage. OBD is the I / M (inspection / maintenance) system can not be the missing link, in order to avoid the phenomenon of the vehicle alarm, the user is not timely repair of vehicles, the California study and formulate regulations introduced in the emission OBD III, about OBD monitoring system satellite communication link with the infinite, each one in the state register of all vehicle emissions can be real-time understanding of the higher authorities. |
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