The thesis is based on income question, forest coverage rate and grop production. to beging with, date envelopment analysis is proved that it can be applicated into grain for green in shan - bei district, and then in view of the fact, seven esential factors which have influence on the project are found out : expense of dam, expense of crop, expense of cash tree, expense of defense tree, other economic crop, expense of grass and graziery ; and the output factors include : income of gdp, pure income per captia, the area of decreasing land loss, graziery income, crop production, income of tree, the totle income of economic crop. after the date of each facts are puted into dea model, unefficiencial decision making units ( dmu ) found. the data that are got through adjusting unefficiencial dmus dy dea can offer guide in shanbei district upgrading of an industrial structure. at the same time, taking into account some possible problems in or after grain for green in shan - bei district, the thesis bring out some propesal to improve the circ umstance, enhance the life level and put the relation of population, resource and circumstance into a healthy orbit
因此,加快退耕還林還草,調整土地利用
結構和產業
結構,已成為實現山川秀美工程和可持續發展戰略的必經之路。論文以解決陜北地區的收入問題,植被問題以及糧食產量問題為出發點,首先從理論上分析了包
絡分析方法在陜北地區退耕還林(草)中運用的可行性,然後
結合陜北地區目前的實際情況,綜合分析出影響陜北地區退耕還林(草)的關鍵的七個因素作為輸入指標:水利水保設施投入,農作物投入,經濟林種支出,防護林支出,其它經濟作物,草類支出,畜牧業投入;以退耕還林所要解決的最終問題作為輸出指標: gdp收入、農民人均純收入、水土流失減少量、牧業總產值、糧食產量、林業總產值、其他經濟作物總產值。將各指標所對應的數據代入模型后,通過分析求解得出非有效的決策單元,再運用包
絡分析方法的一些基本原理對非有效的決策單元進行調整,由此所得的數據對陜北地區的實際投入具有很好的指導意義。
In second part, the feasibility and necessity that a internuncial line of the railroad hinge ( lishu bay - cai yuan dam ) participate in new no. 1 light railway in chongqing is analyzed, at the point of technology and economy, at the same time, the pattern of operation and management is being probed. at last, the methods of joining and transferring among state railway. outskirts railway and routine public traffic is been analyzed
本文第二部分對重慶鐵路樞紐內梨樹灣至菜園壩一條重要聯
絡線參與重慶輕軌交通新號線進行研究,首先介紹重慶市客運現狀和交通路網現狀,
結合重慶市鐵路樞紐的調整規劃,通過對梨菜線參與城市軌道交通的幾種運營模式和管理模式的比較,提出了一個比較適合重慶市特點的運營管理方案,並從技術、經濟、政策方面分析了其可能性和可行性。
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結果。
Results mai luoning injection did not interfere with limulus agent at the 20 times diluted concentration
結果脈
絡寧注射液經20倍稀釋后對鱟試劑反應無干擾作用。
The results are listed as follows : ( 1 ) the inorganic acetate of y, ba and cu were used as precursors, and diethylenetriaminejactic acid and a - methacrylic acid as complexing agents, respectively. the stable fluorine - free ybco sol can be obtained
研究
結果表明: ( 1 )採用y 、 ba和cu的無機鹽為出發原料,採用乳酸、 ?甲基丙烯酸及二乙烯三胺作
絡合劑,可以制得易於成膜且穩定性良好的無氟系ybco溶膠。
Tuberculosis miliaria choroidea
脈
絡膜粟粒
結核
Above of all, the paper briefly introduces the developing sequence of the realism, including classic realism, neorealism or structural realism, and neoclassic realism, offensive realism, and defensive realism
文章首先綜述了現實主義的發展脈
絡,包括:傳統現實主義(或古典現實主義、經典現實主義) 、新現實主義(或
結構現實主義)以及新古典現實主義、防禦性現實主義和進攻性現實主義。
Transient in change, and almost undistinguishable in the mingling of light, space, and motion, they have a logic structure that, with their complex composition, does not belong to the quotidian world of reality
以光、空間和運動組成不能夠確切地辯認的,變幻交錯即現即逝,迷宮似的脈
絡霧靄構成不屬于任何現實世界的邏輯
結構。
In this paper, with the relocation project design analysis of the second rest house and the tax transaction service center of finance bureau and local taxation bureau of huzhou the design idea of bringing single building design into the whole urban context and modulating the urban regional shape according to the urban design is discussed
摘要該文
結合湖州市財政局、地稅局辦稅服務中心及市第二招待所遷建工程設計分析,討論了以城市設計為出發點、將建築單體設計納入城市的總體脈
絡、整合城市區域形態的設計思路。
Conclusion jolectthin is an effective treatment for central serous retinopathy
結論沃麗汀對中心性漿液性脈
絡膜視網膜病變的治療有效。
The thesis developed the optimization design software of geometric parameter for the worm gear including strength check module, the drawing contact lines module, the change lines of tooth thickness of worm, and the parametric modelling software for the reducer which includes parametric modelling of parts and assembly. the cad prototype system is very convenient because of its accessible interfere, simple operation and written in chinese. by input design parameters , the cad system can make optimization design and strength check for the worm gear , draw contact lines of tooth flank of worm - gear and change line of tooth thickness of worm , judge if the tooth flanks of worm undercut and if the sideward tooth of worm - gear hob come to a point , make project design and structure design for the reducer and draw its 2d parts and assembly
研究和開發了平面二次包絡環面蝸桿傳動的參數優化設計和校核軟體系統:包括幾何參數設計計算模塊,強度校核模塊,繪制齒面接觸線模塊,蝸桿齒厚變化曲線模塊和蝸桿根切判別模塊;開發了平面二次包絡環面蝸桿減速器外形與結構尺寸數據庫以及傳動效率數據庫,建立了平面二次包絡環面蝸桿傳動公差及極限偏差數據庫;開發了平面二次包絡環面蝸桿減速器參數化建模軟體:包括零部件的參數化建模模塊和裝配圖的參數化建模模塊,其中零部件的參數化建模包括蝸桿軸系的參數化建模、蝸輪軸系的參數化建模、箱體的參數化建模、端蓋的參數化建模、軸承的參數化建模和其它零部件的參數化建模軟體模塊。