These horizons cannot, with current technology, be segregated during the mining process.
就现有技术而言，在采矿过程中这些层次是不能被分层剥离开的。
They claim, perhaps rather optimistically, that their idea is feasible with current technology.
他们声称，以当今的科学技术他们的想法是可行的，这一点或许相当乐观。
They claim, perhaps rather optimistically, that their idea is feasible with current technology.
他们声称，以当今的科学技术他们的想法是可行的，这一点或许相当乐观。
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