point source 中文意思是什麼

point source 解釋
點放射源
  • point : n 1 尖頭，尖端；尖頭器具；〈美國〉筆尖；接種針，雕刻針，編織針；小岬，小地角；【拳擊】下巴。2 【...
  • source : n 1 源頭，水源，源泉。2 根源，本源；來源。3 原因；出處；原始資料。4 提供消息的人。5 血統。vt 〈美...
  1. In actual practice a brighter image is obtained by using a broad, rather than a point, source along with a substage condenser.

    在實際工作中，不是用點光源而是用一個擴展光源加一個臺下聚光鏡以得到一個較亮的象。
  2. Point source pollution and non - point source pollution are always the two important problems of the water environmental quality. point source pollution mainly includes industrial sullage and city ' s life sullage, which are drained from the certain outfall

    點源污染和面源污染一直是水環境質量的兩大問題，點源污染主要包括工業污水和城市生活污水，通常在排污口集中排放。
  3. Beta point source

    射線點源
  4. The study on absorption of pesticides will be tested in future. these may offer guide and reference to establish riparian buffer controlling agricultural non - point source in shanghai and other plain districts

    根據試驗研究，以及結合國內外的先進經驗，提出了適合上海市情的緩沖帶設計和管理模式，並對緩沖帶進行了環境效益評估。
  5. Kohler illumination was used in proximity lithography, and a fly ' s eye lens was adopted to form multi - point source in order to uniform the light intensity on the mask plane

    摘要接近式光刻中一般採用柯勒照明系統，並採用蠅眼透鏡形成多點光源均勻掩模面的光場分佈。
  6. Tp ( total phosphorus ) has accumulated in the whole layers of sediments from surface to 100cm. 2. the variation of non - point source pollutants after input to wetalnds with rain runoff and fields drainage the concentrations of cod, tn and nh / - n are decreased after input to wetalnds with rain runoff and fields drainage

    降雨徑流和農田排水中非點源污染物進入溝渠濕地后的變化特徵降雨徑流和農田排水中的cod 、 tn 、 nh _ 4 ~ + - n進入濕地后，濃度均顯著降低，證明濕地對非點源污染物有很好的截留和凈化效果。
  7. On theory, based on the latest research of the international neuro - physiologist and psychologist on no, we detail several important results highlighting the role of source structure in the diffusion process, such as point source, hollow sphere source and irregular structure. second, we have had a advanced research on self - organizing feature maps. and some qualities of sofm have been analyzed

    理論地，在國際神經生理學、心理學與醫學關于內源性一氧化氮（ no ）最新研究的基礎上，深入分析一氧化氮的非局部擴散遞質和逆轉錄信使的特性，同時針對模型的不同結構（包括對稱形狀和不規則形狀）給出模擬結果。
  8. Advantages, disadvantages and limits of arm are thoroughly examined using signal processing methods. based on the above, incoherent and coherent two - point - source decoy methods and modified coherent two - point - source decoy methods to deflect arm are brought forward. arm ’ s homing heads are generally of mono - pulse structure, so coherent two - point - source ’ s interference resembles that to mono - pulse radar except that interference to radar belongs to far field scope, but interference to arm varies from far field to near field because relative distance drastically changes between the homing head and the two - point - source with missile ’ s homing head continually approaching the target

    Arm的導引頭一般為單脈沖體制，因此，相干兩點源對導引頭的干擾類同於對單脈沖雷達的干擾，不同的是:對雷達的干擾都是遠場，而導引頭隨著導彈不斷接近目標，兩點源與導引頭的相對位置發生劇烈變化，由遠場變化到近場;導引頭天線口面上的合成場也發生了大的變化，相位波前的畸變產生干擾，這就是相干兩點源誘偏的基本思想。
  9. The specific discharge is infinite at the vicinity of every point source or sink.

    在每個點源或點匯附近比流量為無窮大。
  10. The outcomes show that the two methods can separate the basin pollution load from different sides, the two separation results are close to each other and can be provided as references for drafting pollution prevention policies and ; the proportion of the two pollution loads in the basin is more or less the same, point source is slightly heavier in a dry year and the proportion of non - point source pollution is greater in a wet year

    結果表明，兩種方法可以從不同的側面分別對流域污染負荷進行分割，且兩者分割結果相近，可以為流域污染防治政策的制定提供參考；流域內兩類污染負荷所佔比重大體相當，枯水年點源污染比重略高，而豐水年非點源污染比重較大。
  11. Agricultural non - point source pollution has become a majority of water contamination

    農業面源污染因其對水體污染的普遍性而日益受到重視。
  12. The water pollution can be divided into two major categories of point source and area - source pollution according to the different way of discharge

    摘要根據排放方式的不同，水體污染可以分為點源污染和非點源污染兩大類。
  13. The point source data file contains data for sources emitting more than a specifilc amount of a pollutant per year.

    點污染源數據文件列有每年超量排放污染物的污染源數據。
  14. Consider first a light wave spreading out from a point source.

    首先考慮一個點光源發出的光波。
  15. Advances in non - point source pollution prediction model

    非點源污染預測模型研究進展
  16. Non - point source modeling system of the miyun reservoir watershed

    密雲水庫流域非點源模型系統
  17. A study on the non - point source pollution model

    非點源污染模型研究
  18. A new doa estimation approach for a broadband point source

    一種新的單個寬帶點源到達角估計方法
  19. Load calculation of non - point source pollution in baiguishan reservoir

    白龜山水庫非點源污染負荷計算
  20. Watershed non - point source pollution control decision support system

    流域非點源污染控制決策支持系統
分享友人
分享到 Line

分享到臉書