The revolution in agriculture—paralleling that in manufacturing after the war involved a shift from hand labor to farming, and from subsistence to commercial agriculture.

盡管美國(guó)在工業(yè)方面贏利很大h色视频观看在线观网站，但農(nóng)業(yè)一直是美國(guó)的基礎(chǔ)產(chǎn)業(yè)。農(nóng)業(yè)的變革與戰(zhàn)后的制造業(yè)的革命并駕齊驅(qū)—使手工業(yè)變?yōu)闄C(jī)械耕作，從維持生計(jì)的農(nóng)業(yè)變?yōu)樯虡I(yè)化的農(nóng)業(yè)。

The revolution in agriculture---paralleling that in manufacturing after the war involved a shift from hand labor to machine farming, and from subsistence to commercial agriculture.

農(nóng)業(yè)的革命----和戰(zhàn)后制造業(yè)的革命并駕齊驅(qū)----使手工業(yè)勞動(dòng)變?yōu)闄C(jī)械耕作小黄片在线播放情侣，從維持生計(jì)的農(nóng)業(yè)變成為商業(yè)化的農(nóng)業(yè)。

The revolution in agriculture -- paralleling that in manufacturing after the Civil War -- involved a shift from hand labor to machine farming, and from subsistence to commercial agriculture.

戰(zhàn)后黄片zaixian免费，在制造業(yè)領(lǐng)域內(nèi)發(fā)生革命的同時(shí)26uuu亚洲日韩欧美，農(nóng)業(yè)領(lǐng)域內(nèi)也在發(fā)生一場(chǎng)革命，帶來(lái)手工勞動(dòng)向機(jī)械耕作的轉(zhuǎn)變www.av天堂2020、自耕自給農(nóng)業(yè)向商業(yè)農(nóng)業(yè)的轉(zhuǎn)變在线观看黄A片免费网站免费。

The revolution in agricultureparalleling that in manufacturing after the war involved a shift from hand labor to machine farming, and from subsistence to commercial agriculture.

農(nóng)業(yè)的革命和戰(zhàn)后制造業(yè)的革命并駕齊驅(qū)使手工業(yè)勞動(dòng)變?yōu)闄C(jī)械耕作，從維持生計(jì)的農(nóng)業(yè)變成為商業(yè)化的農(nóng)業(yè)先锋影音最新av资源网址。

The revolution in agriculture—paralleling that in manufacturing after the war involved a shift from hand labour to machine farming, and from subsistence to commercial agriculture.

農(nóng)業(yè)革命——和戰(zhàn)后制造業(yè)的革命并駕齊驅(qū)——使手工勞動(dòng)變?yōu)闄C(jī)械耕作国产青榴视频A片在线观看不卡成，從維持生活變?yōu)樯虡I(yè)化的農(nóng)業(yè)男女视频在线免费看。

Brand: Cities draw people away from subsistence farming, which is ecologically devastating, and they defuse the population bomb.

布蘭德：城市吸引人們遠(yuǎn)離自給自足的農(nóng)業(yè)耕作亚洲性爱视频网址，這對(duì)社會(huì)生態(tài)造成毀滅性破壞，同時(shí)也減少人口爆炸的危險(xiǎn)性无码亚洲电影在线看。

The boost to Western living standards from all those cheap Chinese goods is taken for granted, while the astonishing increase in the sum of human happiness that has been wrought by lifting hundreds of millions of Asians from the misery of subsistence farming into comfortable prosperity is conveniently forgotten.

中國(guó)的廉價(jià)商品對(duì)西方人民改善其生活水平所起的推動(dòng)作用被認(rèn)為是理所當(dāng)然26uuu欧美日韩国产，同時(shí)在幫助了數(shù)百萬(wàn)亞洲人擺脫了為求生而耕作的疾苦，并實(shí)現(xiàn)小康后A片vi视频，人類(lèi)的幸福感驟增国产综合亚洲欧美日韩一区；但是，這一切都被輕易地忽略了精品国产亚洲。

The working performances of a tine and a subsoiler with adjustable wings were compared based on the soil surface condition of conservation tillage and the requirement of subsoiling.

保護(hù)性耕作條件下深松的特點(diǎn)與要求深松法是利用深松鏟疏松土壤999国产在线视频，加深耕層而不翻轉(zhuǎn)土壤，達(dá)到調(diào)節(jié)土壤三相比成视频年人黄网站免费视频高潮、改善耕層土壤結(jié)構(gòu)玖玖草视频、減輕土壤侵蝕、提高土壤蓄水抗旱能力的目的能在线看av的网站。

The actual returns from fertilizer on a particular farm vary with soil type, management system and composition of the sward

一個(gè)具體農(nóng)場(chǎng)施肥的實(shí)際效益隨著土壤類(lèi)型老熟女国产91，耕作制度和牧草地成分而異。

Lots of achievements in soil carbon cycle of conservation tillage have been made in the past years.

國(guó)內(nèi)外在保護(hù)性耕作上對(duì)土壤碳循環(huán)等方面取得了豐碩的成果www狠狠干。