China Internet Network Information Center (CNNIC) released the "25th Statistical Report on Internet Development in China" on the 15th. According to the data, as of December 2009, the number of Internet users in China has reached 384 million, and the Internet penetration rate has further increased to 28.9. %. Cutting is an essential basic tool in the processing of ceramic components. Laser cutting technology has been favored for its non-contact, flexible, high efficiency and easy to achieve digital control. It is hoped that this high-energy beam processing method can be treated like metal materials. Complete the non-destructive cutting of ceramics. With laser as processing energy, the development potential in hard and brittle ceramic processing has been seen. It can realize contactless processing and reduce the damage caused by contact stress to ceramics. Ceramics have higher absorption rate for laser, focusing The energy of the high-energy laser beam acting on the local area of the ceramic can exceed 108 J/cm2, and the material can be melted and evaporated in an instant to achieve high-efficiency processing. Laser Cutting Ceramics,Alumina Ceramic Substrate Sheet,Tobacco Laser Cutting Nozzle,Machinable Ceramic Filter Dongguan Haikun New Material Co., Ltd. , https://www.nitrideceramic.com
The report shows that due to the impact of 3G business development, the number of mobile Internet users in China has grown rapidly, with a scale of 233 million, accounting for 60.8% of the total Internet users. Mobile Internet access has become a new growth point for Internet users in China, with an increase of 120 million in one year.
The top three online application usage rates in 2009 were online music (83.5%), online news (80.1%), and search engines (73.3%). However, the growth rate of business transaction applications has risen sharply, and the number of users of business transaction applications has grown the fastest, with an average annual growth rate of 68%. In 2009, the online shopping market in China reached 250 billion yuan. In 2010, the online shopping market will usher in a larger scale.
China's Internet users reached 384 million mobile Internet users an increase of 120 million a year
Abstract China Internet Network Information Center (CNNIC) 15 issued a "25th China Internet Development Statistics Report Network", the data show that as of December 2009, the scale of China reached 384 million Internet users, Internet penetration further enhance reach ...