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By summarizing the practices of ecological agriculture construction, the author drew a conclusion that ecological agriculture is the necessary approach to obtain the sustainable development of agriculture.
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摘要通过对中国生态农业建设实践的总结,分析了生态农业是实现农业可持续发展的必然选择。 |
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By summerizing the research work both home and abroad this paper attempts to deal with two issues.On one hand the effect,features and functions and process of electronic commerce logistic system are further analysed in comparison with common logistic syst
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本论文在现有国内外对电子商务物流的研究基础上,主要解决两个方面的问题,一方面通过进一步分析论证电子商务物流的作用、特点、服务功能及过程,以显示出它的重要性,使之和一般物流区别开,突出它的特色,使人们对它有更深入的认识,以引起各界人士对它的重视与关注;另一方面,系统的分析电子商务物流系统的构成、合理化途径及设计、评价方法等,使电子商务物流系统的构成合理化,评价方法科学化,以促进电子商务的发展。 |
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By sunset we had covered thirty miles.
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到日落的时候,我们已走了三十英里。 |
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By sunset we had covered thirty miles.
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到日落的时候,我们已经走了三十英里。 |
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By surface mail?
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普通邮递吗? |
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By survey and mapping, the authors ascertain that the main bodies consist of two bulky lens-shaped bags of ore with 340°direction of dip and 70°~80° angle of inclination.
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经矿区调研填图,圈定出主矿体是由两条呈倾向340°、倾角70°~80°的巨型扁豆状矿囊组成。 |
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By surveying all passive form in Yantielun and making quantitative analysis and qualitative analysis, we try to describe the passive form in Yantielun in great details and make up for the achievements of predecessors.
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文章通过穷尽调查和定量定性分析,对《盐铁论》的被动式进行比较详细的描写,并试图对已有成果进行修正。 |
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By systematic investigation and assessment of current situation of the water environment of Handan city, we found out the causes of the pollution in every main river of the city.
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摘要对邯郸市的水环境现状进行了系统的调查评价,查清了各主要河流污染的原因。 |
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By systematic thinking, Nature and man are regarded as an organic and unified system in essence.
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表现在认识特征上则是系统思维与意象思维。 |
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By tacking about, we were able to avoid the enemy guns.
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我们摆动着船帆不停地调转船头,才得以躲过敌人的炮弹。 |
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By tacking about, we were able to avoid the enemy guns.
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我们摆动著船帆不停地调转船头,才得以躲过敌人的炮弹。 |