您要查找的是不是:
- Dengue fever is an important epidemic disease distributing in tropic and sub tropic region.Many countries and WHO work hard to prevent its development. 摘要:登革热是全球热带与亚热带的重要流行疾病,许多国家正同世界卫生组织积极防治疫情发展。
- The new breed of pennisetum pureum tropical forage grass has been cultured which is accustomed to the sub tropic climate condition via introduction and choosing of hybridization. 用美洲狼尾草与非洲象草进行远源杂交,选育出了适应亚热带气候条件栽培的热带牧草王草新品种,并大田观察其生物学特性。
- New thoughts for Modern Agriculture Construction in Guizhou Karst Region. 贵州高原岩溶山区农业现代化建设的对策和思路。
- Karst Region is such a region, in which environment is frangible, water and so. 生态环境的恶化已严重影响喀斯特地区社会经济可持续发展和人民生活水平的提高。
- Problems and Exploitation Countermeasures of Water Resources in Agric ultural Development in Karst Region of Guizhou. 贵州岩溶地区农业发展中的水资源问题及其可持续利用。
- Typical geologic hazard and its characteristics of remote sensing images in karst region II. 喀斯特地区典型地质灾害及其遥感影像特征2。
- Calculation of gushing water in mines in karst region in south China has been complicated. 我国南方岩溶管道流矿井涌水量计算问题较复杂。
- Therefore,the aim of research fragibility of ecosystem in the karst region has important practic... 本文通过分析各生态因子对岩溶生态的作用来研究其脆弱性。
- Abstract: Problems of water resource limit the agricultura l developmentand econ omical development of Guizhou Karst Region. 文摘:水资源问题制约了贵州岩溶地区农业和地区经济的发展。
- The significance and gist of exploitation and utilization of rainwater in Karst region of Guizhou province are introduced in this paper. 介绍了贵州喀斯特地区雨水开发利用的意义及依据;
- Rocky desertification in the karst region is related to stratum and lithology, incising of river, soil erosion, gradient and human activities, etc. 摘要喀斯特地区土地的石漠化与地层岩性、河流切割、土壤侵蚀、坡度及人类活动等有关。
- In karst region, rock desertification is related to stratum and lithology, incising of river, soil erosion, gradient and mankind action etc. 喀斯特地区土地的石漠化与地层岩性、河流切割、土壤侵蚀、坡度及人类活动等有关。
- Oligochaeta in karst region in central Guizhou changes in number and biomass, may direct the karst region in central Guizhou ecosystem restoration and reconstruction degree. 寡毛纲在黔中喀斯特地区种群数量的变化和生物量的大小,可指示黔中喀斯特地区生态系统恢复与重建程度。
- The construction of pile foundation is difficult for the growth of karren, slot, eagle nib, soil hole, karst etc, and the intensity undulation of rockbed in karst region. 岩溶区因溶沟、溶槽、石芽、鹰咀、溶洞、土洞等发育,基岩面起伏强烈,给岩溶区桩基础施工带来较大困难。
- Based on the geology statistical data in the field,the variance of permeability of the corroded rock mass in the grouting adit of Qingjiang Shuibuya project in a typical karst region in south China is computed. 基于现场灌浆平硐揭露的工程地质统计资料,对清江水布垭工程左岸帷幕线上部分段进行了渗透性变异的量化研究。
- The inflow rates of many mines in the karst region of our country not only variate with the changes of mine depth,gallery length and other factors but also have close relationship with precipitation. 我国岩溶地区许多矿床的涌水量不仅随开拓深度(以下简称深度)与巷道长度(以下简称巷长)等因素的变化而变化,而且与降雨关系密切,并对降雨有明显滞后反映。
- I had to sub for the referee, who was sick. 裁判病了,我得代为裁判。
- Rocky desertification is a severe problem in karst region that results in soil erosion and natural disasters such as drought and flood,which in turn worsen the poverty in the region. 石漠化问题加剧了喀斯特地区的水土流失和旱涝等自然灾害,进一步加深了该地区贫困程度,越来越成为制约社会、经济和生态全面发展的桎梏。
- Does cowslip grow in tropic countries? 西洋樱草生长于热带国家吗?
- As a result, how to rehabilitate vegetation and use soil and water resources harmoniously is the key to control environment and eliminate poverty in Karst Region of Southwest China. 如何进行植被的恢复重建和实现水土资源的协调利用,是西南岩溶地区环境治理和消除贫困的关键。