煤矸石制砖的环境影响分析及污染防治措施-毕业论文参考网 关键词:煤矸石;制砖;环境影响 [gap=1147]Key words:Gangue; brick-making; environmental impact
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brick making machine unit 制砖机组
manual brick-making machine 手动制砖机
BRICK MAKING MACHINE 制砖机 ; 砌块成型机
brick making 制砖
Automatic Brick making machine 全自动制 ; 全自动制砖机
The state prohibits the damage to farm land for brick-making, and gradually bans the production and use of solid clay brick.
国家禁止毁田烧砖,逐步禁止生产和使用实心粘土砖。
Members put in a few dollars each week, and offer loans of $50 or $100 for money-generating projects like buying a flock of hens or brick-making molds.
储蓄俱乐部的成员每个星期都会存上几美元,存钱的同时他们也会发放50至100美元的贷款用于盈利项目,如用于购买母鸡或制砖模具等。
The economic costs were estimated according to the results of the extended-scale experimentation, which made the technique of gangue brick-making approaching to perfect.
根据扩试结果进行经济成本估算等,使尾矿制砖技术更趋完善。
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