條件不利群體 的英文怎麼說

中文拼音 [tiáojiànqún]
條件不利群體 英文
disadvantaged groups
  • : Ⅰ名詞1 (細長的樹枝) twig 2 (條子) slip; strip 3 (分項目的) item; article 4 (層次; 秩序; 條...
  • : Ⅰ量詞(用於個體事物) piece; article; item Ⅱ名詞1. (指可以一一計算的事物) 2. (文件) letter; correspondence; paper; document
  • : 名詞[書面語] (剁物所用的木墩) a block of wood
  • : Ⅰ名詞(聚在一起的人或物) crowd; group Ⅱ量詞(用於成群的人或物) group; herd; flock
  • : 體構詞成分。
  • 條件 : 1. (客觀的因素) condition; term; factor 2. (提出的要求) requirement; prerequisite; qualification
  • 群體 : 1. [生物學] population; colony2. [社會學] group
  1. A preliminary study on the species composition, ecological characteristics and present distribution of vegetations in mengyang area, the largest part of xishuangbanna nature reserve, shows that there are 7 vegetation types, 15 formations, 24 community types in this area. the vegetation map was made by using gis software ( arc / info ), and the area and distribution pattern of each community was obtained. the subtropical monsoon evergreen broad leaved forest occupies the largest part, with an area of 41. 26 % of the whole, and the tropical rain forest occupies less than 10 % of the whole area. according to the topography, altitude, climate characters and present distribution of the vegetation, and based on the landscape type map, an original vegetation map under natural conditions was obtained, which could provid a theory for the vegetation restoration, especially for the tropical rain forest and its habitat, and for the development of the nature reserve

    對西雙版納勐養自然保護區植被的類型進行了劃分,包括人工和自然落,共有7個大類、 15個系、 24個落類型分佈.對每個類型的主要組成種類、生態特徵和分佈現狀進行了初步研究.用地理信息系統軟制取植被圖並獲得了各種植被類型的分佈面積和分佈格局特徵,這一地區亞熱帶季風常綠闊葉林的分佈面積和所佔比例最大,達總面積的41 . 26 % ;而熱帶雨林面積超過總面積的10 % .依據地形、海拔、氣候和現狀植被分佈的規律,在獲得景觀類型圖的基礎上,得到了可以反映這一地區在完全自然下植被可能分佈的狀況的還原植被圖,為保護區的發展和植被的恢復提供了理論依據。
  2. This study dealt with the identification and evaluation of 8 maize populations from tropical and subtropical regions under the ecological conditions in zhengzhou, henan. results showed that the significant delaying days to shed and days to silk, discoordinating for the development of male and female, higher plant and ear height, more leaf numbers, high barreness, worse performance of ear traits compared with the ck ( temperate population ) were found, which showed the tropical and subtropical populations could not be utilized directly under the ecological conditions in zhengzhou. by using selection and improvement the tropical and subtropical populations can be used to broaden the genetic base of temperate maize breeding, beause of the greater genetic variation and higher selection potential within each population. the different performances of the sensitivity to photoperiod were observed among different tropical and subtropical populations and different traits. the asi, time to silk, ear height, leaf numbers, grain yield per ear could be used as the good evaluation traits for identifying the sensitivity to photoperiod

    對8個熱帶、亞熱帶玉米在鄭州生態下的表現進行鑒定和評價,結果表明,熱帶、亞熱帶散粉、吐絲期顯著延遲,雌雄協調,植株和穗位高、葉片數增多、空稈率高,結實性差,果穗性狀均明顯劣於溫帶對照,在鄭州生態能直接用,但是內具有較大的遺傳變異和選擇潛力,可以用來拓寬現有玉米種質的遺傳基礎;同熱帶、亞熱帶的光周期敏感性同;同性狀對光周期反應的敏感程度同, asi 、吐絲期、穗位高、葉片數、穗粒重可作為鑒定光周期敏感性的較好指標
  3. Biodiversity exists among am fungi and is influenced by numerous factors including soil properties and plant species. if am fungi are to be used in sustainable agricultural systems it is necessary to study native am fungi in the target areas and then select efficient isolates that can be applied as inocula in the field to improve crop growth. the objectives of this study were to investigate the germplasm of am fungi, to understand the distribution pattern of am fungi in different ecological conditions such as area, soil factor and host plant, to select isolates effective in nutrient acquisition by the host plant sweet potato, to test their effectiveness under field conditions, and to monitor amf after their introduction into the field

    本研究通過調查我國北方部分地區的am真菌資源,研究了am真菌的種組成及其在空間、土壤用方式和宿主植物類型等同環境和空間尺度上的分佈規律;在此基礎上,根據它們對甘薯的生長、吸磷效應篩選出高效菌株,在大田下研究了am真菌菌絲的分佈特性、代謝活性及其對甘薯產量和品質的影響;並通過分子探針跟蹤調查了引入am真菌在共生中的發育和表達,以期為菌根真菌的生產應用提供技術支持。
  4. Based on these foundations, we give a perfect scheme of the bbo opos : single pass amplification coefficient of the opg under different pump intensity is calculated ; collinear type - i and type - ii phase matching tuning curve pumped by the q switch nd : yag various harmonics as well as noncollinear type - i tuning curve are calculated in details ; the effect of the walkoff for the nonlinear effect coefficient and the group velocity matching are analyzed ; the acceptance angle in parametric process is calculated ; the numerical threshold of the bbo opo is calculated ; the process of the saturation and depletion of the pump beam are analyzed ; the relationship of the conversion efficiency and reflectance of output mirror are discussed ; various linewidth controlling methods are discussed ; the improvement of the beam quality applying the unstable cavity is discussed ; and the crystal bbo design is considered

    在此基礎上,給出了一整套bbo - opo激光參數設計方案:計算了同泵浦強度下的參量放大倍數;詳細計算了在nd : yag調q激光器各次諧波泵浦下的共線類和類相位匹配的調諧曲線,以及非共線類相位匹配調諧曲線;分析了走離角對非線性系數和速匹配的影響;計算了參量過程的允許角;計算了bbo - opo的理論閾值;分析了飽和與泵浦光束的消耗過程;給出了轉換效率與超過泵浦閾值的倍數的關系;討論了轉換效率與輸出鏡反射率的關系;討論了線寬控制的各種方法;研究了用非穩腔改善光束質量的方法;考慮了bbo晶的設計。
  5. They may depress not only the wages of traditionally disadvantaged groups, such as blacks and hispanics, but also the wages of american middle - class professionals, particularly if the u. s. continues to relax the rules for entry of high - tech workers

    他們會壓低當地人的工資,只過去一直處于地位的受波及,例如非裔美人與中南美移民的後裔,要是美國繼續對擁有高級技術的人員斷放鬆移民的話,中產階級的專業人員也會受影響。
  6. In order to study the combustion process and the movement of propellant in the barrel, a multi - photo x - ray experiment system was designed. four groups of photos under different ignition systems were obtained, and these photos were manipulated with digital image manipulation technology. the gray degree of the photos was averaged, and the information, such as density, velocity of the projectile and the trace - indicating grains and confliction velocity of the propellant against the projectile under the consideration of the velocity of the projectile, was extracted and analyzed quantitatively

    本文就用由多幅脈沖x光攝影技術所獲得的四種同點火下的火炮膛內火藥顆粒運動狀況的陰影照片,進一步用數字圖像處理的技術及相關演算法,編制軟對照片進行了處理,統一了照片的灰度,最終在定量上獲得了同點火下的火藥顆粒的密度分佈規律、彈丸和示蹤藥粒的運動速度以及在考慮到彈丸運動的前提下的火藥顆粒與彈丸的撞擊速度。
  7. With the poverty of farmer as the core, the external expression such as the poor group in economy, the backward group in culture, the weak group in politics as the basement, with the self - organizing methodology as the theoretical foundation, the conditional methodology of self - organizing, kinetic methodology in synergetics as the aspect, this essay analyses this problem from the aspect of the environmental factors ( the partition between the city and the country ; one country two policy and household registration system and other natural conditions ) of farmer ' s poverty, from the aspect of motive mechanism ( competitive and corporation ) of the farmer seeking development, from the aspect of supercirculation _ the recycling use of resources. then we conclude that the root of farmer ' s poverty that is the reduction of natural resource farmer relying on, the lack of competition and corporation, the poor efficiency of the resource use

    論文研究是以分析農民貧困為核心,以農民貧困的外在表現? ?經濟上的貧困,文化上的落後,政治上的弱勢為基礎,以自組織方法論為理論依據,以自組織的耗散結構環境方法論、協同學的動力方法論和超循環結合方法論為視角,分別從農民貧困問題產生的環境因素? ? 「城鄉分治,一國兩策」和「戶籍制度」及自然等方面,從農民追求發展的動力機制? ?競爭與合作方面,從超循環結合? ?資源的循環用方面進行分析論證。我們由此得出的結論是:農民賴以生存的環境資源減少,競爭與合作足,資源低效用是農民貧困問題產生的根源。
  8. Others argue that recognition of cultural differences and group identities does not help address social and economic disadvantages

    還有一些批評家認為承認文化差異和身份對解決社會和經濟上的沒有幫助。
  9. First. for linear systems in more general divergent form stated in [ 1 ], we give a complete proof on the generation of an analytic semigroup for the linear system by verifying the general sufficient condition on the analytic semigroup ( (. a, b, ) is a - regular elliptic bvp ), which make up for the insufficiency in the existence of local solutions which was established by h. amann [ 2 ]. thus the h. amann ' s theory on local existence and global existence of ( 1 ) is valid for cross - diffusion system ( 1 )

    所以我們首先用h . amann [ 1 ]中給出的關于解析半的充分( ( a , b , , , )是正則橢圓初邊值問題) 。詳細的證明了( 2 )對應的線性方程組生成解析半,從而說明了h . amann的局部解存在性和整解存在性理論在散度型方程組( 2 )中也是成立的,這在一定程度上彌補了h . amann [ 2 ]中局部解存在性理論證明的完善。
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