The engineering dept is undertaking the work of the scientific research and new technology overcoming for many kinds machinery of plowing land , sowing seeds , protecting plant , transport vehicle using agriculture and farmland constructing 本工程部担负着全国耕整土地、播种中耕、植保、农用运输和农田建设等多种机械的科研与新技术攻关工作。
Protection of farmland represents the long - term interests of the country , its lack of executive main body and the inaccurate land information is the main reasons of the lack of protection of farmland in sustainable utilization of urban land 摘要耕地保护反映的是国家的长远利益，其执行主体的缺位和土地信息不准是城市土地利用中耕地保护不足的主要原因。
It is very necessary to research and optimal the device of dissemination , ball - spoon shaped vertical - plate metering device filling in inside is a new type dissemiantor , which can meet single - seed - dissemination . it ' s construction is ball - spoon shaped device filling in inside 球勺型内窝孔垂直圆盘排种器是一种新型的机械式排种器，它适于中耕作物的单粒点播，其排种元件为球勺型内窝孔。
Dissemination is the most important stage during the agricultural plating , single - seed dissemination of crop , especially the wheat , the mealie etc , can improve the productivity , save seeds and fertilizer save time and then reduce costing , increase productivity 播种是农作物种植过程的重要环节，作物尤其是中耕作物的单粒点播具有增产增收、节种、省肥、省工、降低作业成本、提高劳动生产率等优点。
The results show that the interface between the cultivated layer and the plough sole in the soil profile was undulated under the current cropping system mainly using small - sized four - wheeled tractors and flat under the cropping system of deep plowing annually in the fall 结果发现，现行的以小四轮拖拉机为主要动力的耕作制度下，土壤剖面中耕层与犁底层的界面为“波浪型” ，而年年进行秋翻的玉米田，其耕层与梨底层的界面为“平面型” 。
From the perspective of quantity elasticity and spatial elasticity of arable land and basic farmland protection , this paper discusses part of the content and measures of arable land and basic farmland protection , including the meaning of arable land and basic farmland , balance between land occupation and compensation , ecological returning of farmland , division and fulfillment of basic farmland indexes , and puts forward the idea of elastic protection of arable land basic farmland , expecting to provide a new thinking of arable land and basic farmland in a new round of land use planning 在耕地的严格保护中寻求弹性保护，从耕地和基本农田保护的数量弹性和空间弹性出发，对耕地和基本农田保护的部分内容和措施方面进行探讨思考，提出了耕地弹性保护和基本农田弹性保护，以期为新一轮土地利用总体规划修编中耕地和基本农田保护提供新思路。
This series of seeders are hydraulic suspended type multi - functional machine integrating fertil - izing and intertillage management , working for deep side fertilizing and sowing in drill for the crops or wheat , cole , etc . , and deep side fertilizing , precision drilling , parallel sowing , ridge tillage , and intertillage management , etc . , for soybean , corn , beet , etc 该系列播种机为液压悬挂式，多功能播种机，施肥、中耕管理于一机，可以进行小麦、油菜等作物的侧深施肥条播作业；大豆、玉米、甜菜等作物侧深施肥、精量点播、平播、垄作、中耕管理等项工作。
Children , too young to comprehend wherefore this woman should be shut out from the sphere of human charities , would creep nigh enough to behold her plying her needle at the cottage - window , or standing in the doorway , or labouring in her little garden , or coming forth along the pathway that led townward ; and , discerning the scarlet letter on her * , would scamper off with a strange , contagious fear 年纪尚幼、不理解这个女人为什么会被人类的仁慈拒之门外的孩子们，会蹑手蹑脚地走近前来，窥视她在茅屋窗边飞针走线，窥视她位立门前，窥视她在小花园中耕作，窥视她踏上通往镇子的小径：待到看清她胸前的红字，便怀着一种害怕受到传染的奇异的恐惧，迅速逃开了。
Children , too young to comprehend wherefore this woman should be shut out from the sphere of human charities , would creep nigh enough to behold her plying her needle at the cottage - window , or standing in the doorway , or labouring in her little garden , or coming forth along the pathway that led townward ; and , discerning the scarlet letter on her breast , would scamper off with a strange , contagious fear 年纪尚幼不理解这个女人为什么会被人类的仁慈拒之门外的孩子们，会蹑手蹑脚地走近前来，窥视她在茅屋窗边飞针走线，窥视她位立门前，窥视她在小花园中耕作，窥视她踏上通往镇子的小径：待到看清她胸前的红字，便怀着一种害怕受到传染的奇异的恐惧，迅速逃开了。
