生物物料学
physical properties of bio-materials
物料物质组成
substance composition in materials
substance composition of materials
YN高分子聚合物防水层
YN high molecular polymer waterproof layer
边坡生物防护
Ecological slope protection
材料防腐蚀技术
materials anti-corrosion technology
茶树虫害的生物防治
Biocontrol of pests in tea plantation
衬砌防蚀
corrosion prevention of tunnel lining