研究了以铸造废砂为填料、废旧地膜为基体，制备复合材料的界面问题。
The interface of the composites made of waste foundry sand as fillers and waste mulching films as matrix was studied.
铸造生产的两大污染源，一是使用含有有毒物质的树脂黏结剂，二是排放的废砂成为大量固体废物。
In foundry production, two great pollution sources are use of resin binders containing toxic matters and large amount of solid garbage resulting from waste sands.
利用地方瓷砂原料和废碎玻璃试制了具有防水、保温功能的高温发泡陶瓷。
The high temperature foamed ceramic with water all proof and thermal insulation has been trial - produced by using local porcelain sand and cullet.
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