analysis of shutdown of model kl-15 oxygen production truck caused by earthing interruption 15型制氧車停機原因分析
influence of converter steel production on co2 content in the air of oxygen production stations 煉鋼轉(zhuǎn)爐生產(chǎn)對氧氣站區(qū)空氣中二氧化碳含量的影響
experiments of the influence of rare earth element lanthanum on the growth, chlorophyll a and oxygen production of cyanobacterium 的生理影響和滿江紅魚腥藻對鑭的富集作用進行了研究。
micro devices for brazing and welding with own hydrogen and oxygen production-mechanical and gas engineering requirements, test, marking 帶自制氫和制氧裝置的微型釬焊機和焊機.機械和氣體技
the eco-environmental benefits are composed of the followings : water resources conserved amount to 28 percent, 422.2 million yuan, land resources protected and improved make up 3 percent, 40.6 million yuan, carbon fixation and oxygen production for 17 percent, 254.4 million yuan, environmental decontamination take up 26 percent, 395.5 million yuan, and ecological tourism covers 26 percent, 383.2 million yuan 生態(tài)環(huán)境效益價值中,攔蓄保護水資源價值42222.2萬元,占總價值的28;保護改良土地資源價值4060.3萬元,占總價值的3;固碳制氧價值25442.9萬元,占總價值的17;凈化環(huán)境價值39546.4萬元,占總價值的26;生態(tài)旅游價值38321.2萬元,占總價值的26。