Then we expound the principle and architecture of WAP, security of mobile devices and application fields of mobile electronic commerce.

然后，阐明了无线应用协议WAP的原理和体系结构，以及移动设备的安全技术和移动电子商务的应用领域；

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Then we expound the principle and architecture of WAP, security of mobile devices and application fields of mobile electronic commerce.

然后，阐明了无线应用协议WAP的原理和体系结构，以及移动设备的安全技术和移动电子商务的应用领域；

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