摘要
Instructions for SubmissionsManuscripts （less than 7000 words） should be submitted online at： http：//en.iwep.org.cn or http：//mc. manuscriptcentral.com/cwe. Submissions must be typed according to the following format：
Instructions for SubmissionsManuscripts （less than 7000 words） should be submitted online at： http：//en.iwep.org.cn or http：//mc. manuscriptcentral.com/cwe. Submissions must be typed according to the following format：
