从露天场馆到封闭建筑的转变，就可能是追求门票收入的开始。
The change from the unroofed stadiums to sealed off buildings may be the beginning that tickets were sought.
泥岩经压实固结成岩后，其孔隙度变小，从开始具有封闭能力，到封闭能力逐渐变好。
After its compaction into rock, mudstone has lower porosity and its sealing capability becomes better.
从一个Intranet到另一个Intranet、从一个Intranet到封闭网络或者从一个封闭网络到另一个封闭网络传输或访问数据将需要安全的通信。
Secure communication is needed to transfer or access data from one Intranet to another, from one Intranet to a closed network, or from one closed network to another.
应用推荐