文章首先介绍了IEEE 802.16a协议和无线宽带城域网系统结构，并对基于此协议的无线宽带城域网络移动电子商务系统结构进行了研究。
This dissertation introduces IEEE Std 802.16a and broadband wireless systems(BWS), Mobile E-business system infrastructure development based on IEEE 802.16A for BMAN is introduced too.
24小时新闻、电子商务、移动电话、全球定位系统，所有这些都正在使世界变得更小、发展得更快。
Twenty-four-hour news, e-commerce, mobile phones, Global Positioning Systems, all these are making the world smaller and faster.
首先是移动代理系统的安全问题，特别是恶意主机问题；其次是电子商务中的公平交易问题。
First is the security of mobile agent system, especially the malicious host problem; Second is the fair exchange problem in electronic commerce.
新系统更快，更高效，但有人类摘掉移动货架上的物品由专人仍然是一个昂贵，繁琐的任务，这是一个电子商务的瓶颈。
The new system is faster and more efficient, but having humans pick the items off the mobile shelves by hand is still an expensive, tedious task that's an ecommerce bottleneck.
中国电子商务公司阿里巴巴集团(Alibaba Group)推出了自己的移动操作系统“阿里云os”。此举将对几家领先的高科技公司构成挑战。
Alibaba Group, the Chinese e-commerce company, is mounting a challenge to several leading technology companies with the launch of its own mobile operating system.
中国电子商务公司阿里巴巴集团(Alibaba Group)推出了自己的移动操作系统“阿里云os”。此举将对几家领先的高科技公司构成挑战。
Alibaba Group, the Chinese e-commerce company, is mounting a challenge to several leading technology companies with the launch of its own mobile operating system.
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