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- 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。
- 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。
- 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。
- 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。
- 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。
- Semi arid region of Chinese Loess Plateau 黄土高原半干旱地区
- ARID GRASSLAND TYPE AND ITS UTILIZATION OF EAST GANSU PROVINCE 浅谈陇东干旱草地类型及其利用
- The Patagonian Mara lives in Central and Southern Argentina.Maras inhabit arid grasslands and scrub desert. 它分布于阿根廷中部和南部的缺水的草原和灌木丛生的沙漠地带。
- In the more arid grasslands, herding of goats, sheep and so on is a traditional method of subsistence. 在较干旱的草原上,山羊、绵羊等的放牧业才是人们传统的维生之道。
- Effects of different land use types on carbohydrate content and aggregate stability in arid grassland soil 利用方式对干旱草原土壤碳水化合物含量及团聚体稳定性的影响
- He jammed his hat on angrily arid went out. 他怒气冲冲地使劲戴上帽子,走了出去。
- The climate on grassland is capricious. 草原的气候变化无常。
- The horses are eating grass on the grassland. 马在草地上吃草。
- The flood inundated the whole district. 洪水淹没了整个地区。
- They have demolished the slum district. 贫民区已被拆除。
- How can people make a living in this arid area? 这片不毛之地上的人们怎么谋生呢?
- This district grew cotton on a large scale. 这个地区过去大量种棉花。
- Arid grassland ecological areas divided and forage ecological type coupling in Northwest China 中国西北干旱草地生态区划分及宜栽牧草
- He lives in a mountainous district. 他住在山区。
- He was selected as the district attorney. 他被选为地方检察官。