The removal efficiency of phosphorus in drinking water by modified filter media, especially iron oxide-coated sand has been studied.
试验研究了三类改性滤料及涂铁改性石英砂对饮用水过滤去除微量磷的效果。
2
One half of the warehouse is clad in planks of charred cedar, while the other is covered in iron oxide-coated boards to achieve a red colouring.
一半的仓库被包裹了烧焦的雪松木板，而其他都是铁的氧化物涂层板附着了红色。
3
The oxide-coated zirconium of the chambers at the piston and cylinder head, the design of air gap on the auxiliary chamber are applied to lower heat rejection.