1) biological shield
生物屏蔽[体]，生态保护，生物防护
2) biological shield,biological shielding
生物防护屏
3) bio-protection
生物防护
1.
The differences between efficiency of test and practical efficiency and the aspects needed to be considered when testing filter for bio-protection are discussed at the end.
对检测效率和实用效率之间的差别以及检测生物防护用过滤器所应注意的问题进行了讨论。
4) bio-defense
生物防护
1.
The orientation and main tasks of the information research on bio-defense;
论生物防护情报研究方向和任务
5) biological protection
生物防护
1.
Practice of biological protection for side slope of high-grade highway;
高等级公路边坡生物防护技术实践
2.
It introduces high-class road slope biological protecting technology, elaborates the principle of slope protecting plants’ choice, points out that high-class road slope biological protection is an important part of road maintaining and virescence, also a important guarantee of safe and expedite road.
介绍了高等级公路边坡生物防护技术,阐述了边坡防护植物选择的原则,指出高等级公路边坡生物防护是公路养护、绿化的重要一环,是公路安全畅通的重要保障。
3.
This articles aims to provide some theoretic basis for the rock slope landscaping research workers and designate a clear-cut direction for the research through the analysis on the current situation of research on biological protection for rock slopes in China.
通过对我国边坡生物防护研究现状的分析,为边坡绿化研究工作者提供一些理论依据,指明研究方向。
补充资料：防护屏(protectivescreen)
【防护屏】(protectivescreen)指放射源与人体之间放置能减弱或吸收射线的一种阻挡物。所用材料及其厚度取决于射线的性质和强度。防护`\gamma`射线、`X`射线宜用原子序数较高的重金属，如铅、铁或混凝土等材料。对`\beta`射线，特别是对高能的`\beta`射线，应采用低原子序数的物质，如有机玻璃等。对中子射线辐照常用水、石蜡等含氢物质。对中子、`\gamma`射线混合辐射场，则需用由重元素和轻元素相间隔组成的多层防护层或用轻
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条