1) Slate area
板岩地区
2) flagstone
[英]['flæg,stəʊn] [美]['flæɡ,ston]
板层岩<地>
3) Karst
[英][kɑ:st] [美][kɑrst]
岩溶地区
1.
65% of the Karst land area and 31.
文山州石漠化的形成是由于岩溶地区地质环境脆弱,在不合理的人类活动和自然因素作用下,一些地区植被退化乃至消亡,导致水土严重流失,最终形成了连片分布的裸露石漠。
4) karst areas
岩溶地区
1.
The technology for prediction of water in flow disasters in long and large tunnel, karst areas;
岩溶地区长大隧道涌水灾害预测预报技术
2.
Grassland animal husbandry is the priority sector for poverty elimination in Karst areas;
草地畜牧业是改变岩溶地区贫穷面貌的首选产业
3.
Although a large quantities and careful works have been done and induced disasters in tunneling, karst areas, but there still are a large quantities problems needed to be solved , due to the complicacy of such problems and the treatises are still remain at qualitative description of disasters.
文中简要介绍了岩溶地区长大隧道岩溶水的特殊性,分析了隧道涌水涌泥及地表塌陷等灾害发生的规律。
5) karst region
岩溶地区
1.
Design and construction of shaft in karst region;
岩溶地区竖井的设计与施工
2.
Study on Ecoenvironment Problems and Countermeasures on Agriculture Sustainable development in Karst Region of Guizhou Province;
贵州岩溶地区的生态环境现实与可持续发展对策
3.
Construction characteristics and technical measures of cast-in-place bored pile in karst region;
岩溶地区钻孔灌注桩施工特点及技术措施
6) karst district
岩溶地区
1.
Pore-forming construction technical measures of mechanical punched cast-in-situ pile in karst district;
机械冲孔灌注桩在岩溶地区成孔施工技术措施
2.
This paper gives an analysis on the karst distribution and on the ecological crisis faced by the local people and triggered by fragile ecology over the karst district.
分析云南岩溶的分布,以及岩溶地区生态脆弱给当地人民带来生产、生活的生态危机,并结合云南石漠化治理的成功经验,提出岩溶地区生态恢复的思路。
3.
Because of the cavities in the Karst district,the problem of bearing behavior of pile foundations will be inevitably met in the design and construction of bridges in the district.
由于岩溶的存在,在岩溶地区进行桥梁工程设计与施工,将不可避免遇到岩溶地区桩基承载特性问题。
补充资料：板岩
| 板岩 slate 一种浅变质岩。由粘土质、粉砂质或中酸性凝灰质岩石经轻微变质作用形成。黑色或灰黑色。岩性致密，板状劈理发育。在板面上常有少量绢云母等矿物，使板面微显绢丝光泽。没有明显的重结晶现象。显微镜下可见一些分布不均匀的石英、绢云母、绿泥石等矿物晶粒，但大部分为隐晶质的粘土矿物及碳质、铁质粉末。具变余结构和斑点状构造。常见类型有碳质板岩、钙质板岩、黑色板岩等；也可根据岩石的其他特点，如矿物成分、结构构造等，分为空晶石板岩、斑点状板岩、粉砂质板岩、硅板岩等。板岩广泛分布于区域低温动力变质作用的岩系中，如中国北方早元古宙滹沱群的豆村板岩，南方中晚元古宙的板溪群、昆阳群等内也有大量分布。可作建筑石材。
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参考词条