Continuous converting research for producing zinc oxide by fuming furnace of zinc slag 鋅渣煙化爐連續(xù)吹煉生產(chǎn)氧化鋅研究
It is only but one legal way to convert the collective - owned to the state - owned by requisition the former as a complement to the urban land in the continuous converting since china built the land - public - ownship 自從我國(guó)土地公有制確立以后,集體所有制下的農(nóng)用土地,作為城市用地的補(bǔ)充,在不斷進(jìn)行著用地性質(zhì)的轉(zhuǎn)換,但集體土地向城市用地轉(zhuǎn)換唯一的合法途徑是土地征用。