The main elements of the digital library system structure are digital target, handle and storage.
数字图书馆体系结构的主要构件是数字对象、句柄和仓储。
At this general target, the ratio of public oil storage and commercial storage may be 3:1;
在此总体目标下，我国公共石油储备和商业储备可考虑采取3：1比例。
At this general target, the ratio of public oil storage and commercial storage may be 3:1;
在此总体目标下，我国公共石油储备和商业储备可考虑采取3：1比例。
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