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BBCNEWS BBC News September 13, 2024

Who Is coverIng thIs hIstorIc who Is coverIng thIs hIstorIc mIssIon, as It gets under way. BehInd hIm we can see already In hIs new seat pIlot scott. Welcome to vIewers from the News Welcome to vIewers from the News Channel whojoIned welcome to vIewers from the News Channel who joIned us welcome to vIewers from the News Channel whojoIned us now. What News Channel whojoIned us now. What youre seeIng on screen Is the astronaut In the new upgraded suIts gettIng ready for theIr fIrst commercIaL Spacewalk. ThIs Is a moment of hIstory spacewalk. ThIs Is a moment of hIstory I spacewalk. ThIs Is a moment of hIstory. I am spacewalk. ThIs Is a moment of hIstory. Lam here spacewalk. ThIs Is a moment of hIstory. I am here wIth a serIes hIstory. I am here wIth a serIes of hIstory. I am here wIth a serIes of guests to talk you through serIes of guests to talk you through thIs IncredIble, IncredIble moment. So, what Is happenIng now Is that the cabIn Is beIng happenIng now Is that the cabIn Is beIng ....

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疏勒河灌区节水记——一个西北灌区的深度节水进行时


  从漫灌到滴灌:向节水型灌区迈进
  在玉门市昌马灌区,记者驱车来到位于疏勒河流域中部的饮马农场,只见绿色的田野一望无际,眼前的洋葱、西兰花等长势喜人。
  饮马农场隶属于甘肃省农垦集团公司,是甘肃省粮、棉、油的主产地之一。据饮马农场副场长赵富强介绍,农场内支渠、斗渠、农渠成网,灌溉面积近10万亩,农田涝可排、旱可浇,但由于田间渠道衬砌率低,跑冒渗漏水现象严重。
  “近年来,农场先后建设了12个高效节水(滴灌)项目。目前,每年正常投入使用的高效节水农田面积达3.5万亩左右。高效节水膜下滴灌和水肥一体化技术应用后,与过去大水漫灌相比,总体上可节水40%以上,亩均增加经济效益30%以上。”赵富强说,比如这片500亩的田地,以前大水漫灌需要耗水600-800立方米,现在滴灌用水量不到 ....

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