The state shall timely formulate the requirements on the minimum rate of use of the reclaimable materials.

国家适时制定最低再生材率要求。

The bugaboos in larger versions of this optimistic vision are highly variable flows of material, and decentralized, dilute concentrations of reclaimable stuff.

这个乐观观点述最多，莫过于高变异质流动，以及可回收质密度分散和稀释。