Closed and Locked Circuit
closed and open condition
closed and opened loop control
closed and pressured fuel system
closed recycling system
hillsides-closed and afforested
limited and closed environment
non-empty closed and convex subset
Open loop and closed loop
oriented and closed theorems
subsection and closed device
the closed recycling wastewater
catalyst separation and recycling
cold recycling and reclaiming
decentralization and recycling