Eager to improve farming conditions,they tried out this new crop on a large area.

他們急于改進(jìn)耕作條件51国产黄色视频，所以就大面積地試種了這種莊稼轻点好疼好大好爽视频网站。

The objectives were to analyze the effects of wind erosion under plough tillage and no-tillage, evaluate changes in soil physical, chemical and biological properties due to different tillage practices, and to discuss the effects of soil properties on wind erosion.

以北方農(nóng)牧交錯(cuò)帶為研究對(duì)象，分析了免耕對(duì)農(nóng)田土壤風(fēng)蝕的影響国产va精产，評(píng)價(jià)了不同耕作方式下與土壤風(fēng)蝕相關(guān)的土壤物理影音先锋最新AV网站、化學(xué)和生物學(xué)特性的差異。

Harvests increased because farmers took more land under the plough.

糧食產(chǎn)量所以上升日韩成人国语在线视频观看免费播放，是因?yàn)檗r(nóng)民耕作了更多土地无码一级淫片免费观看。

Harvests increased because farmers took more land under the plough.

糧食產(chǎn)量之所以上升，是因?yàn)檗r(nóng)民耕作了更多土地15yc午夜福利在线视频。

The results showed that the interface of the middle plough layer and plough sole under the present farming system was wavy type, while the interface of the plough layer and plough sole of the corn field under the cropping system of annual autumn plowing was flat type.

結(jié)果表明操美女视频网站，現(xiàn)行的耕作制度下，土壤剖面中耕層與犁底層的界面為&波浪型&色拍拍网，而每年進(jìn)行秋翻的玉米田一级片免费视频精品，其耕層與梨底層的界面為&平面型&。

What right had the unclean and stupid farmer, whose farm abutted on this sky water, whose shores he has ruthlessly laid bare, to give his name to it?

在這個(gè)水天之中耕作精品色站，又強(qiáng)暴地糟蹋了湖岸的一個(gè)污穢愚昧的農(nóng)夫黄色网站免费一级国产性生活破处真人版，他有什么資格用他自己的姓名來(lái)稱呼這一個(gè)湖呢？

A disaster befalls Gabriel's farm and he loses his sheep; he is forced to give up farming.

災(zāi)難befalls加布里埃爾的農(nóng)場(chǎng)和他失去了他的羊群国产精品第37页，他被迫放棄了耕作性激慰在线网站观看。

Jones's books and eventually concocts a scheme to build a windmill, with which the animals could generate electricity and automate many farming tasks, bringing new comforts to the animals' lives.

瓊斯的書(shū)籍，并最終concocts計(jì)劃建立一個(gè)風(fēng)車欧美精品无遮挡，與該動(dòng)物可能產(chǎn)生的電力和自動(dòng)化許多耕作任務(wù)日本高清www在线观看视频，帶來(lái)新的舒適的動(dòng)物的生命。

For more than a century, a few scientists have occasionally daydreamed of transforming much of the Sahara desert green, with a lush inland sea or vast tracts of farmland.

一個(gè)多世紀(jì)以來(lái)亚洲精品成人AV观看青青，科學(xué)家一直產(chǎn)生偶然的幻想永久精品在线观看视频，要把撒哈拉大沙漠的大部分地區(qū)改造成為擁有植被茂盛的內(nèi)陸禾疑笤谙咄荆或一大片耕作地的綠洲。

For more than a century, a few scientists have occasionally daydreamed of transforming much of the Sahara desert green, with a lush inland sea or vast tracts of farmland.

1個(gè)多世紀(jì)時(shí)間里可以看的免费黄色网站，少數(shù)科學(xué)家曾偶然間幻想把撒哈拉大沙漠的大部分地區(qū)改造為綠洲欧洲Va黄色视频，如植被茂盛的內(nèi)陸海或者大塊耕作地黄色超碰在线观看。