您要查找的是不是:
- Water application furrow seeder for arid and semi arid region can carry on the watering operation as sowing and fertilizing with the objective of seedling prevention. 施水沟播机可在起垄施肥播种的同时进行施水作业,从而解决了干旱和半干旱地区的播种保苗问题。
- Semi arid region of Chinese Loess Plateau 黄土高原半干旱地区
- Effect of Different Mulch Materials in Low Temperature and semi Arid Region on the Space-temporal Distribution of Ground Temperature and Moisture 低温半干旱区不同覆盖物对地温和水分时空分布的影响
- Aeolian sand, distributed extensively around China?s arid and semi arid zones, is the main bearing body of wind erosion in China. 风成沙广泛分布于我国干旱与半干旱地区,是我国风蚀与风沙活动的主要载体。
- Arid regions cober arid and semiarid areas. 旱区包括干旱区和半干旱区。
- The relationship of competitive ability and productive performance between land race Monkhead and modern variety 8275 of spring wheat in semi arid area of Loess Plateau was invested using de Wit replacement series. 采用deWit替代系列法研究了黄土高原半干旱雨养农业区传统地方品种(和尚头)与现代品种(陇春8275)之间在混播条件下的竞争结局。
- Figure 4 depicts character convergence in different species using an example from an arid region. 图4用干旱地区的一个例子描绘了不同种的性状趋向性。
- The situation of water resources deficiency is very scrious in the large areas o f the arid, semi arid even semihumid of Huabel Plain, endangering the agricultur al sustainable development. 华北平原广大的干旱、半干旱甚至半湿润区,水资源形势严峻,威胁农业持续发展。
- These results are helpful for understanding of water consumption in oases of arid region and implementation of water resources deployment. 深化了绿洲耗水的认识并为绿洲水资源配置提供依据。
- Semi arid climate, poor vegetation cover and highly erodible loess can be regarded as the main natural factors responsible for the formation of hyperconcentrated flows in the Loess Plateau, China. 黄土高原半干旱的气候条件、稀疏的植被和疏松易蚀的黄土物质,是该地区高含沙水流形成的自然地理因素。
- Dust storm: A severe windstorm that sweeps clouds of dust across an extensive area, especially in an arid region. 尘暴:一种能在很大范围内卷起大量尘云的严重大风暴,尤指发生于干燥地区的。
- Dry climate, low rainfall, the average annual rainfall was 240 millimeters, a typical arid region. 气候干燥,雨量稀少,年平均降雨量为240毫米,属典型的干旱区。
- A soil of semiarid and arid regions that is rich in calcium carbonate and lime. 钙层土半干燥和干燥地区含丰富碳酸钙和氧化钙的土壤
- The middle reaches of Heihe river is the second largest inland valley in the arid region of northwestern China. 黑河中游是我国西北干旱区开发历史较早,绿洲化程度较高的第二大内陆河流域。
- Discovered in an isolated and arid region of Australia in 2007, the Central Ranges taipan is one of the most venomous snakes in the world. 2007年发现于澳大利亚与世隔绝干旱地带的中陆太攀毒蛇,是世界上毒性最强的蛇之一。
- No earthworms live in this seasonally arid region, so termites assume the vital role of enriching the soil by recycling dead wood and grass. 没有蚯蚓生活在这片周期性干燥的地区,所以白蚁通过回收死去的木头和草,担负起肥沃土壤的重任。
- The rivers are mainly fed by alpine glacial meltwater, which is also another main feature of runoff in the arid region in China. 因此,对干旱地区水文特征的分析研究,对工、农、牧业及生活用水都具有重要的意义。
- WDC-D for glaciology and geocryology was established by Cold and Arid Region Environment and Engineering Institution in 1991. 世界数据中心冰川与冻土学科中心由中国科学院寒区旱区环境工程研究所于1991年创建。
- Specially, the west Ordus-east A LaShan region is very significant to form、preserve and breed the plant districts of the arid region in EuroAsia. 尤其西鄂多斯-东阿拉善,对欧亚干旱区植物区系的形成、保存以至繁衍都具有十分重要的意义。
- Vast forests just did not exist in these predominately arid regions. 巨大的森林就是在这些掌握干燥的区域中没有存在。