Such survey, research, contrast and analysis lead to the author ' s positioning of current status of county economy development of the yuanmou county as follows : 1 ) yuanmou is a county typically sustained by agriculture and thus has the characteristics of its kind along with other basic characteristics of mountainous counties ; 2 ) it has lagged far behind the development of the rest of the country, with an economic size accounting to merely 25 % of the average of other counties of china, or 50 % of other counties of yunnan ; 3 ) natural advantages have enabled the tropical crops and green agriculture to stand out as the leading industries, which, together with the discriminative planning and effective efforts of the local government, has resulted in the emergence of the promising " dinosaur economy ; " and 4 ) under - development of industry, now the weakest point of economy of the county, has always been hindering the rapid growth of the local economy and worrying the county leadership, suggesting that industrial restructure and accelerated development of the second and third industries are a tough but inevitable task to tackle
通過調查、研究、對比、分析,將元謀縣域經濟發展的現狀定位在:元謀縣是邊疆少數民族地
區典型的農業縣,具有農業主導縣所具有的典型特徵,同時也具有山
區縣經濟類型的基本特徵;與全國縣域經濟的平均水平相比差距較大,為25左右;與雲南省的平均水平相比僅為50左右;元謀縣由於具有一定的自然優勢,其
熱區作物、綠色產業已經非常突出地成為了該縣的主導產業,加之政府能動力發揮得較好,其「龍型經濟」正在逐步形成,發展勢頭看好,縣域經濟的規劃、發展思路清晰明了;工業仍然是元謀縣經濟發展最為薄弱的一環, 「無工不富」是時時懸在縣委、縣政府頭上的一個警鐘。產業結構的調整,二、三產業的大力發展是元謀縣無法繞開而又必須面對的非常艱巨的任務。
Testing method for work zone of heat treatment furnace
熱處理爐有效加
熱區測定方法
Study on the cultivation and utilization of fine green manure of phaseolus calcalatus roxb. in the tropical areas of southern yunnan province
滇南
熱區優良綠肥飯豆栽培及其利用研究
On the theories and principles of modern ecology, such as ecosystem ecology, landscape ecology, and mountain science, a division system with four classes were established : forest region, sub - regions, sub - sub - region and small region according to their spatial structure and geographical characteristics of forest ecosystems in yunnan hot regions
摘要按照雲南
熱區森林生態系統的空間結構和地理特徵,應用生態系統學、景觀生態學、山地學等現代生態學的理論和原理,確立了雲南
熱區森林地理分
區的原則及「森林
區」 、 「分
區」 、 「亞
區」 、 「小
區」的4級分
區系統。
Abstract : in the internal circulating fluidized bed, there exist the moving zone, fluidizing zone and heat transferring zone with different fluidized air velocities. the convection heat transfer coefficient of immersed tube in the heat transferring zone is impacted by the velocity of the moving zone nearby and its data and change trend are obviously different with those of the common bubbling bed. the maximum heat transfer coefficient is evidently higher than that of the bubbling bed. as the bed materials have not been fluidized in the heat transfer zone, the coefficient has increased highly. the curve of that changes gently, feasilble to control the combustion intensity in the fluidizing zone
文摘:垃圾焚燒系統中,內旋流流化床存在不同布風速度的移動
區、流動
區和換
熱區,處于換
熱區的埋管的對流換
熱系數受附近流動
區氣流參數的影響,其變化趨勢及數值大小與普通鼓泡型流化床之間有明顯不同:最大的對流換
熱系數明顯高於鼓泡床;換
熱區尚未流化時,對流換
熱系數已經大幅提高;整條換
熱曲線的變化比較平緩,易於流化床濃相床內換
熱。
Exemplified by the qixian geothermal area, this paper points out that the combination of the radon surveying method and the magnetic method is an effective means in search for geothermal resources
以祁縣地
熱區為例,說明測氡法與磁法相結合是尋找地
熱資源的一種行之有效的手段。
There is a hook on the two ends of heating area, you need only to hood the spring after round the band on compressor when install
電加
熱帶線在加
熱區兩端裝配有彈簧掛鉤,裝配時將電加
熱帶線環繞在壓縮機上,扣上彈簧即可。
Adopting step - motor drive, upper / lower & back exhausting filter structure ; auto - proportioned flux supply ; special wind way design for good protection of the muzzle and avoiding flux flying to preheating zone, reducing any chance of unsafe troubles
採用步進馬達驅動,上下及后側抽風過濾方式,助焊劑自動供給,特殊風道設計,有效保護噴嘴,防止助焊劑逃逸至預
熱區,減少安全隱患。
It is very popular to be used for the welding of orbital tube, pipe, very small parts, short welding cycles and also where a specific number of welds are called and then the electrode is to be replaced. cerium tungsten electrode, tungsten cerium electrodes, w - ce electrode, ce - w electrodes, tungsten electrode, tungsten
鎢鈰並不適合於高電流條件下的應用,因為在這種條件下,氧化物會快速的移動到高
熱區,即電極焊接處的頂端,這樣對氧化物的均勻度造成破壞,因而由於氧化物的均勻分佈所帶來的上述好處將不復存在
The quasi steady state analytical method is used to calculate the temperature in the heat structure. in normal condition, the heat transfer modes included the convection and boiling conditions
用集總參數法來計算
熱傳導;在正常的工況下,用含兩個傳
熱區的兩相對流傳
熱模型,計算流體與管壁間的換
熱。
The results show that, when the hardfacing process is not appropriate, the thick martensite structure with high carbon content will form in the overheat region of heat affected zone, and the high residual stress occurred, which are the primary causes resulting in crack
結果表明,堆焊工藝制定不當,
熱影響
區的過
熱區形成高碳粗大馬氏體組織及保留了較大的焊接應力,是導致堆焊層開裂的主要原因。
Thinking about running tropical agriculture periodical
新時期熱區農業科技期刊辦刊策略探析