When one comes to more tractable land at lower altitudes, problems of permanent pasture improvement are not nearly so difficult

在海拔較低的易于耕作的土地上www.zachiew.com，改進(jìn)永久草場(chǎng)的問題并不很困難。

EXAMPLE: Important new discoveries in genetic engineering are causing agricultural experts to transvalue traditional farming practices.

由于基因工程的重大發(fā)現(xiàn)，農(nóng)業(yè)專家開始重新評(píng)估傳統(tǒng)的耕作方法。

This uncultured production mode can not satisfy the need of society development along with the progress of society and the increase of population.

隨著社會(huì)的進(jìn)步和人口的增多在线a黄网站，這種落后的生產(chǎn)方式越來越不能滿足社會(huì)發(fā)展的需要，因此黄片在线免费无码，需要尋找一種適合南方紅壤地區(qū)的旱地耕作模式，以提高土壤的降水入滲能力中文字幕精品无码亚洲aⅴ网站、貯水保墑能力同性女女做视频免费观看，最終達(dá)到提高生產(chǎn)效率。

In order to reduce labor intensity, make rolling boat unpiloted, a remote driving control system without changing the original?structure of the rolling boat has been designed.

為降低勞動(dòng)強(qiáng)度www.一级毛片，實(shí)現(xiàn)水田耕作無人駕駛乐播三级黄三区视频免费，以南方使用較廣的機(jī)滾船為研究對(duì)象，在不改變現(xiàn)有結(jié)構(gòu)的基礎(chǔ)上就要干综合，設(shè)計(jì)了一種遙控駕駛系統(tǒng)00pao免费在线视频。

It is the star that is not reached and the harvest sleeping in the unplowed ground.

它是無法觸及的星辰，是沉睡在尚未耕作的土地下的收獲美女一级日逼毛片。

Barbarism had not been able entirely to eradicate the culture and civilisation of ancient Rome. A genial climate and a fertile soil, notwithstanding an unskilful system of cultivation, yielded abundant nourishment for a numerous population.

愚昧落后并不能完全歸咎于古羅馬文化和文明的滅絕在线亚洲国产成人；只要擁有溫煦的氣候和肥沃的土壤，盡管耕作制度并不健全成年男人黄网站色大片免，但仍能產(chǎn)出巨大人口的富裕繁榮欧洲美女一级牲交不卡。

A genial climate and a fertile soil, notwithstanding an unskilful system of cultivation, yielded abundant nourishment for a numerous population.

愚昧落后并不能完全歸咎于古羅馬文化和文明的滅絕；只要擁有溫煦的氣候和肥沃的土壤国产精品视频一级香蕉AAA，盡管耕作制度并不健全五月婷婷激情四射，但仍能產(chǎn)出巨大人口的富裕繁榮。

He said he had finished the work,was untrue.

他說他已經(jīng)完成耕作愉拍自拍视频在线播放网站下载安装，這不是真的在线视频国产欧美。

Compared with upper layers, soil temperatures variation were lag in deeper layer.

所有耕作措施土壤溫度隨深度的增加出現(xiàn)滯后現(xiàn)象成年人肉丝袜黄色网站。

The volcanic cone outer edge of the slope, covered with a suitable farming in the fertile soil, a rise of the foothills of the Lannimu and Pompeii He prosperity of the two cities.

活動(dòng)、火山錐的外緣山坡欧美性爱首页，覆蓋著適合于耕作的肥沃土壤日日插日日干，其山腳下有興盛的赫庫蘭尼姆和龐貝兩座繁榮的城市。