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Arid regions cober arid and semiarid areas. 旱区包括干旱区和半干旱区。
Drought Resistance and High Yield Integrated Technology of Corn in Cool Semiarid Area. 半干旱冷凉区玉米抗旱丰产集成技术。
Li S Q, Li S X.Leaching loss of nitrate from semiarid area agroecosystem [J].Chinese Journal of Applied Ecology, 2000, 11(2): 240-242. [2]李世清;李生秀.;半干旱地区农田生态系统中硝态氮的淋失[J]
Li S X, Li S Q.Leaching loss of nitrate from semiarid area agroecosystem[J].ChineseJournal of Applied Ecology, 2000,11(2): 240-242. [2]李世清;李生秀.;半旱地区农田生态系统中硝态氮的淋失[J]
Xing W Q, Wang L Q, Luo Y M, Li L P, Li S X.Effect of spatial coupling between irrigation water and fertilizer on corn in semiarid area. 邢维芹;王林权;骆永明;李立平;李生秀.;半干旱地区玉米的水肥空间耦合效应研究
Out of the Qingtong Gorge, the riverway runs around the northwestern boundary of the Ordos Plateau, most of which is arid and semiarid area with no branch joining in. 出青铜峡后，河道沿鄂尔多斯高原西北边界绕流，沿途所经，大部分为干旱和半干旱地区，几无支流加入。
By using soil bores and closed chamber methods, field experiments were carried out in the semiarid area of dry land to study the effects of irrigation and rainfall on the N2O loses. 摘要利用土壤探头法和密闭气室法相结合，就黄土高原旱地土壤玉米生长期灌溉和降水对N2O气态损失的影响进行了研究；
Effect of plastic film mulching on crop yield and nitrogen efficiency in semiarid areas. 半干旱地区地膜覆盖对作物产量和氮效率的影响。
Cold regions cover the areas with the average temperature of the coldest month below 0'C.Arid regions cober arid and semiarid areas. 寒区是指冬季最冷月平均温度为零度以下地区；旱区包括干旱区和半干旱区。
Cold regions cover the areas with the average temperature of the coldest month below 0’C.Arid regions cober arid and semiarid areas. 寒区是指冬季最冷月平均温度为零度以下地区；旱区包括干旱区和半干旱区。
As a kind of special soil, aeolian sandy soil mainly lies in arid and semiarid areas where sand drift activity is very strong. 沙土是存在于干旱、半干旱地区的一种特殊性土,其岩土工程性质与风沙环境紧密相关。
The infection is not transmitted person to person and is caused by the fungus Coccidioides immitis, which is found in soil in certain semiarid areas of North and South America. 这种病的感染不通过人际传播，而是由粗球霉菌造成，这种真菌存在于美国北部和南部一些半干旱区域的土壤中。
High efficient utilization of rainwater resource is very important for the economic development in arid and semiarid areas where surface water and ground water are shortage. 合理高效地利用雨水资源对西北干旱半干旱地区尤其是地表水缺乏地下水不易利用地区的经济发展具有十分重要的意义。
He steered into the parking area. 他把车开进了停车区。
The cyanide transport in the soil section is similar to freely soluble salts.In arid and semiarid areas, cyanide can be highly enriched in the salt crust. 氰化物在干旱半干旱气候条件下的行为同于易溶盐，可在地表盐渍中高度富集。
Arid and semiarid areas are main areas of food production in our country.Water shortage and nutrient deficiency are two key factors that restricted crop production in these areas. 干旱和半干旱地区是我国重要的农业生产区，水分不足和养分缺乏是制约其生产发展的两个关键因素。
The slum area was sordid and filthy beyond belief. 该贫民区之污秽肮脏简直令人难以置信。
Because of the unfavourable natural conditions,China s semiarid areas has low-level economy development and low-degress social development, which lead to deficiency of interior impetous. 中国半干旱区由于自然条件比较严酷,不仅经济发展水平低下,而且社会发育程度低,引发社会结构变迁的内部动力不足。
The flood cut a wide swath in this area. 洪水席卷了这一地区，满目一片疮痍。
The luminous intensity on unit area. 单位面积上的发光强度。