submerged intermediate copper wire drawing machine set
meager set=set of first category
copper-copper-nickel compensating conductor
Native copper-copper oxide deposit
pyridine-2-carboxylic acid copper copper picolinat
pyridine-3-carboxylic acid copper copper nicotinat
An’qin copper deposit of Anhui copper capital’s copper industry Company
Anqing Copper Deposit of Anhui Copper Capital’s Copper Industry Company
close small set and open large-scale set
cut set of dynamic fuzzy set
cut set of the lattice interval fuzzy set
Dividing calibration set and prediction set
extension set [= extension telephone set]
fuzzy maximizing set and minimizing set
low set in place of high set