PREVIEW
... searching energy stones and dark particles.
But according to the estimates of a group of international scientific research experts, with their current technological level, it will take at least seven or eight years to convert real dark particles into usable energy stones. This is because Xie Xihe has already provided Feasible solutions and principles.
So although the task of scientific research was heavy, Xie Xihe also knew that this matter would not be accomplished in a day, so ...
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