片语

ecological environment of semiarid regions半干旱地区生态环境

Semiarid saline regions半干旱盐渍化地区

arid and semiarid regions干旱半干旱地区

semiarid loess hilly-gully regions半干旱黄土丘陵沟壑区

Northwest semiarid regions西北半干旱区

semiarid and subhumid regions半干旱和半湿润地区

英汉例句

• dry farming; dryland farming: a system of producing crops in arid and semiarid regions without the use of irrigation.

  旱地耕作法：指一种在干旱或半干旱土地上不使用灌溉方法生产作物的耕作制度。

• an annual plant(cyamopsis tetragonolobus) probably native to india, adapted to semiarid regions and grown as a forage crop and for its seeds, from which guar gum is obtained.

  瓜尔豆一种一年生植物（瓜尔豆瓜尔豆属），可能为印度特产，适于在半干旱地区生长，作为饲料栽培，其种子可提炼出瓜尔豆胶。

• about 200 species: arid and semiarid regions of the w hemisphere; two species in china.

  大约200种：西半球的干旱和半旱的地区；中国有2种。

• the role and function of microbiotic crust in ecological restoration of arid and semiarid regions of china were discussed.

  探讨了土壤微生物结皮在中国干旱沙漠地区生态恢复中的地位及作用。

• extensive areas of the arid and semiarid regions have soils containing concentrations of soluble salts sufficient to adversely affect plant growth.

  干旱与半干旱区域的广大面积含有对农作物足以造成不利关系的高浓度溶性盐。

• dry farming; dryland farming a system of producing crops in arid and semiarid regions without the use of irrigation. frequently alternate years of fallow and cropping are practiced.

  旱地耕作法指一种在干旱或半干旱土地上不使用灌溉方法生产作物的耕作制度。常常采用一年休耕、一年种植的方法。

• lack of water resource has become a critical problem faced by china northwest regions and the other arid and semiarid regions in the world.

  水资源短缺已成为我国西北地区乃至世界上其他干旱半干旱地区需要面对的一个重大问题。

• this paper summarized hydrological characters, distribution of precipitation and runoff in arid and semiarid regions in the northwest of china on the basis of the previous researches.

  本文在前人研究基础上，总结了中国西北部干旱半干旱地区的水文特性，降水及径流的时空分布规律。

• there arc many plains in north arid or semiarid regions of our country are well irrigation fields.

  我国北方干旱、半干旱区，有许多平原地区属浅层地下水纯井灌区。

• the micro-meteorological conditions are advantageous for forming soil condensate in arid and semiarid regions in north china.

  中国北方干旱半干旱地区的气象条件有利于土壤凝结水的形成。

• drought can happen at any time on any climate zone. arid and semiarid regions are where drought occurs the most often.

  干旱可以发生在任何气候带上，但干旱、半干旱地区是全球干旱灾害发生最频繁的地区。