There is an extremely close relationships between time, space, mass source and mineralization.
在时间上、空间上及物质来源上与成矿有着极为密切的关系。
The compressed air is the main safe energy source for mass industrial production.
压缩空气是大规模工业化生产的主要安全能源。
The compressed air is the main safe energy source for mass industrial production.
压缩空气是大规模工业化生产的主要安全能源。
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