灌溉面积

Some of the changes are influenced by irrigation schemes, like the Aral Sea in central Asia which has shrunk in size by three-quarters in the last 40 years as waters have been diverted to help a cotton-growing scheme.

部份改变则是灌溉计画所造成；因栽棉计画而改道的水流，导致中亚的咸海面积过去四十年缩小了四分之三。

Since 80s,the infected area by head blight of wheat (Fusarium gramin-earum,Schw,) has been developing and the degree of development increasing gradually year after year,because of the change of cuhivating system and the availabe irrigation condition, which formed a farmland- ecologic environmet there was adventageous to outbreack of the disease.

宁夏引黄灌区自80年代中期以来，由于耕作制度的改变，又有灌溉条件，构成了有利于小麦赤霉病发生和流行的农田生态环境，发病面积逐年扩大，发病程度不断加重。

Experiments is located at Yucheng Comprehensive Experimental Station, Chinese Academy of Sciences, Yuchen County, Shandong Province (Latitude: 36°57′N, Longitude: 116°36′E, and Altitude: 20m) in 2000～2001 and 2001～2002 winter wheat growing seasons. Mainly observed factors under sprinkler irrigation and surface irrigation conditions include (1) dry and wet bulb temperature and wind speed at four heights, radiation, soil temperature and water surface evaporation of 20cm standard pan on the top of canopy;(2) winter wheat tillering, stem height, leaf area, biomass and yield; and (3) soil water content and winter wheat evapotranspiration.

实验在中国科学院禹城综合试验站进行，主要观测内容包括：（1）喷灌和地面灌溉条件下近地面不同高度处的温度和湿度、辐射、地温和冠层顶部水面蒸发量等农田小气候要素；（2）叶面积、生物量和产量等作物生长要素；（3）土壤水分变化过程、农田蒸发过程和冬小麦耗水量等要素。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了