Thesis author is concerned with the project of security VPN engineering that the unit is a design and practice for the group company.
论文作者参与了本单位为某集团公司设计和实施的安全VPN工程项目。
Construction quality, security and progress make the components of the technology of the construction unit, which is particularly important for the construction of underground engineering.
确保工程施工质量、安全、进度，是施工单位施工技术的重要组成部分。尤其对于地下工程施工的质量和安全更为重要。
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