It was found that the commercial wood, big diameter pit log and slash of Robinia pseudoacacia Linn stand correlated with the average age (A) of the stand in power function, and correlated with the average diameter D and height H of the stand linearly.
刺槐林分经济材、大径坑木、废材随林分平均年龄变化呈幂函数相关，随林分平均直径、林分平均高变化呈直线相关。
The building material wastewater was treated by A/O process instead of conventional activated sludge process.
采用A/O法代替普通活性污泥法对建材废水进行处理,考察其在低温条件下对COD的去除效果。
piling and burning
堆垛烧除法(废材处理)
Waste material must is make full use of.
废弃材料必须充分利用。
12 Monitor obsolete material and continually reduce dollar levels of obsolete inventory.
监控作废的原材料并持续减少作废的库存。
A Vital Way of Saving Wood: Utilization of Urban Waste Wood;
木材节约的重要途径:城市废弃木材利用
Waste products from factory can be made into roadbuilding material.
工厂的废品可以制成筑路的材料。
sell an old car for scrap.
把旧汽车当废弃材料卖掉
plant materials and animal waste used as fuel.
用作燃料的植物材料和动物废弃物。
They used the "junk" of industrial society as material for sculpture.
他们用工业社会的“废物”作雕塑材料。
get(natural products)back from used material by treating it
（利用废旧材料）再造（原始成品）
The necessity of waste plastics applied in waterproofing materials for construction was summarized in this paper.
概述了废塑料用于化学建材的必要性。
Waste balloonflower plant production become fashionable in the new building materials market
废弃农作物秸杆料染绿新型建材市场
Keywords: wastewater sludge, potential applications, construction materials.
关键词：废水污泥、再利用、建筑材料。
Study on Pulping of the Triploid Populus Tomentosa Carr. Waste-crotch Wood;
三倍体毛白杨废弃物—枝桠材制浆研究
Research and Development of Composite Sheet Prepared by Waste Auto Ceiling Polypropylene;
回收汽车顶衬PP废料进行板材的研制
Research and Evaluation of Recycling Process of Electronic Wastes;
废旧电子材料回收过程的研究与评价
The Recover and Preparation of LiAlO_2 from the Waste Li-ion Batteries;
从废旧锂离子电池中回收制备LiAlO_2材料
Study on the Technology of Preparing RDF by Waste Plastic Packaing Film
废旧塑料包装薄膜制备RDF材料的研究
Study on Resource Utilization for Fast Growth Wood Pulping Wastewater
速生材高得率制浆废液的资源化利用