5G时代的打开方式

来源 :中国发展观察 | 被引量 : 0次 | 上传用户:ctzlhst
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
5G时代,比预想的来得更快。6月6日,工信部向中国电信、中国移动、中国联通和中国广电发放5G商用牌照。这比先前提出的"2018年试点、2019年预商用、2020年正式商用"的时间表提早了一年,中国疾步迈入"5G商用元年"。
其他文献
To evaluate the feasibility and accuracy of a three-dimensional augmented reality system incorporating integral videography for imaging oral and maxillofacial r
Spindle cell lipoma(SCL) is a benign lipomatous neoplasm typically located in the posterior neck and back of older males. It presents as a well-circumscribed ma
<正>近年来许多香港市民喜欢为自己家安装木门,作为家居的大门,但是木门防火性能不佳,且经不起潮湿和风雨的考验,因此,镀锌钢板防火门就应运而生,且日渐流行。 镀锌钢板防火
中国对外开放再迈新步伐。因涉及最为敏感的金融业开放,而备受瞩目。10月15日,国务院公布对《外资保险公司管理条例》和《外资银行管理条例》部分条款进行修改的决定。这次修
One-step apexification using mineral trioxide aggregate (MTA) has been reported as an alternative treatment modality with more benefits than the use of long-term
Cellular fibronectin(cFn) is a type of bioactive non-collagen glycoprotein regarded as the main substance used to maintain periodontal attachment. The content o
Enamel crystals are unique in shape,orientation and organization.They are hundreds of thousands times longer than they are wide,run parallel to each other,are o
Stimulation of the trigeminal nerve can elicit various cardiovascular and autonomic responses;however,the effects of anesthesia with pentobarbital sodium on the
又一个重要历史节点就要到来了。我们以什么姿态去迎接?最好的答案是,做这个伟大时代的实践者。事物原本没有“最好”一说。但是,历史的真实摆在面前,我们必须这样选择。人们
Mineral trioxide aggregate(MTA) is considered at the present time as the gold standard for root-end filling in endodontic surgery.However, this biocompatible ma