能見度目標物 的英文怎麼說

中文拼音 [néngjiàndùmùbiāowù]
能見度目標物 英文
visibility marker
  • 能 : 能名詞（姓氏） a surname
  • 見 : Ⅰ動詞1 （看到; 看見） see; catch sight of 2 （接觸; 遇到） meet with; be exposed to 3 （看得出; ...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 目 : Ⅰ名詞1 （眼睛） eye 2 （大項中再分的小項） item 3 [生物學] （把同一綱的生物按彼此相似的特徵分為幾...
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 物 : 名詞1 （東西） thing; matter; object 2 （指自己以外的人或與己相對的環境） other people; the outsi...
  • 能見度 : visibility; conspicurity; seeing
  • 目標 : 1. （對象） target; objective 2. （目的） goal; aim; destination
  1. This essay focuses its study and comparison on the tendering system of international financial organization, raises the necessity of foreign loan tendering system, considering the existing tendering situation in fields of capital construction, mechanical equipment, imported electrical and mechanical equipment, government purchasing and foreign loan purchasing, and gives constructive views in tendering and bidding procedure of project construction agencies and construction supply enterprises, so as to improve the construction level of the foreign loan projects in our country, increase the bidding ability of our enterprises for participating international projects, and promote the establishment and improvement of the tendering and bidding management system in our country after learning from tendering purchasing system abroad

    本文主要研究和對比國際金融組織的招標制度，結合我國在基本建設項目、機械成套設備、進口機電設備、政府采購、國外貸款采購等領域的招標投標現狀，提出研究國外貸款招投標制度的必要性並結合實際工作經歷，為我國項目建設單位和貨物與工程供應企業在招標投標環節提出建設性意見。以期提高我國利用國外貸款項目的建設水平，提高我國的企業參與國際工程投標能力，並借鑒國外招標采購制度，加快我國招投標管理體制的建立和完善。
  2. Atmospheric attenuation of scene contrast is studied theoretically on the basis of radiometric principles, and the relationships between the measured maximal detection range for a target and visibility distance under two possible conditions are obtained

    根據輻射度學原理，從理論上研究景物對比度在大氣傳輸中的衰減，得到了在兩種可能的條件下所測得的目標最大探測距離與能見距離的關系。
  3. Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants

    文摘:生物入侵是不均衡世界的一個永恆話題，尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的，但另外一些則有著嚴重的後果，會給入侵地的生物以至於整個生物群落造成影響.本文總結了分佈區擴張的常見模式，概述了它們對遺傳多樣性和種群結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑，來揭示伴隨擴張選擇和漂變在形成種群遺傳樣式中的作用.本文對日益增多的群體遺傳學方法進行了總結，這些技術可以用來在不同的時間尺度上推斷種群規模所發生的巨大變化（瓶頸效應及種群擴張） .最後，我們以歐洲櫟癭蜂（膜翅目，癭蜂科，癭蜂族）一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時間尺度上，多態的等位酶位點上等位基因頻率的數據表明: 1 ）遺傳多樣性沿入侵路線呈不斷下降的趨勢，支持了冰河期避難所作為遺傳多樣性中心的作用; 2 ）入侵地區的種群與該物種原產地的種群相比，遺傳上的分化更為強烈.這種種群結構在空間上的變異可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變異的反映
  4. At present, the study of the fire safety evacuation in the world mainly focus on : ( 1 ) the importance of the model of egress and the ability of modeling predict a obvious tendency of the study is that there will be more behavior details included in the model in the future ; ( 2 ) the influence of the smoke and its toxicity to people which focus on the study of the influence of toxic gases such as carbon monoxide to people who exposed in fire, the test of the visibility of directional and exit signs, the behavior of the occupants in fire and the time they response to the fire ; ( 3 ) the application of the evacuation model in fire safety design, the constitute of performance - based code and building evaluating the purpose of the study of people ' s evacuation is to improve the fire safety design and cut down the number of casualties

    人的生命是寶貴的，因此，世界各國的消防科研主要以生命安全為主，重點研究火災中人員的安全疏散，並提出新的性能化防火設計和性能化防火設計規范，從建築設計入手而保證建築防火設計的可靠性和建築物的火災安全性。目前，國際上對火災安全疏散的研究主要集中在以下方面： （ 1 ）疏散模型的開發和模型預測能力的改進疏散模型方面的研究一個明顯的趨勢就是未來的模型將包含更多的行為細節，注重人的行為的因素。 （ 2 ）火災中人員反應及毒性和煙的影響這一研究主要集中在一氧化碳等有毒氣體對暴露在火場中人員的影響，疏散指示標志的可見度測試，以及火災中人員的行為和對火災的反應等方面的研究。
  5. The theoretical analysis indicates that the main factors of cover - shelter properties of fabrics are cover factor of fabrics, fabric thicknesss, optical reflectance and absorbance of yarn. with a combination of distances and luminaces, 512 experiments were made to find out the relationship between the least distinguishable distance and reflectance coefficient

    通過理論分析，指出了影響織物能見度的主要因素有織物覆蓋系數、織物厚度、紗線的光學反射率和吸收率.將測試距離跟織物前與織物后目標物的照度組合成512項實驗，由此獲得最小分辨距離和反射系數間的關系
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