occurrence index 中文意思是什麼

occurrence index 解釋
火災發生率
  • occurrence : n. 1. （事件的）發生，出現，有；【礦物】存象，（礦床等的）埋藏；產地。2. 遭遇，事件，事故。
  • index : n （pl es dices ）1 索引。2 指標，標準，標志。3 示[食]指 （＝index finger）。4 指數。5 【印刷】指...
  1. Concordance : an alphabetical index of all the words in a text or corpus of texts, showing every contextual occurrence of a word

    共現關系：字母索引依字母順序對文章正文或作品全集所作的索引，其中顯示每一個詞的上下文。
  2. The persistence of dry warmer sector in winter in northwest of china is the index of its occurrence. moreover, the sand over the ground surface also provided a favorable substance condition. sand - dust weather in qingdao occurred frequently in spring

    蒙古氣旋和西北強冷空氣是「 3 . 20 」強沙塵暴最主要的天氣形勢和動力機制；冬季北方乾旱少雨、沙塵裸露面大提供了物質基礎。
  3. A review on the index of weather disaster of longan and its occurrence regularity

    龍眼氣象災害指標及發生規律研究綜述
  4. Multiple comparison method and similarity coefficient method were developed to estimate population size of the giant panda. the chi - square testing was used to determine the relationship between the occurrence of pandas and the type and intensity of human disturbance. habitat selection of the giant panda and impacts of human disturbance, such as logging, livestock grazing, herb collecting, poaching, road building, were quantitatively analysed by habitat selection index of manly

    同時還利用manly （ 1993 ）的選擇指數（ selectionindex ） ，定量分析王朗大熊貓對生物和非生物生境因子的選擇，特別是分析如採伐、放牧、采藥、偷獵、修路等人類干擾對大熊貓及其生境的影響，從而為保護區大熊貓的管理提供依據，將造成大熊貓瀕危的人類干擾降至最低。
  5. The paper makes out comprehensive evaluation of under pressure mining of mining area through the below aspects : analysising water - resisting layer ' s occurrence geologic features, physical and mechanical property and stability of duancun - leigou bauxite deposit ; researching of confined aquifer ' s hydrogeology features, fault fracture zone and its transmissivity of cambrian - ordovician limestone ; combining calculation of thickness quantitative index of safe water - resisting layer and etc

    摘要通過對段村雷溝鋁土礦隔水層賦存地質特點、物理力學性質及其穩定性分析和寒武奧陶系灰巖承壓含水層水文地質特徵、斷層破碎帶及其導水性的研究，結合安全隔水層厚度量化指標的計算等，對礦區帶壓開采做出綜合評價。
  6. Look upon city is filled with ratio index to should be waited for from the point of dynamic angle, for high to income fluctuation industry, short - term inside occurrence deficit is normal phenomenon, should be filled with rate computation as city with average gain at this moment, perhaps use what did not come to anticipate gain comes to computational city to be filled with rate, such city is filled with frank ability significant

    看待市盈率指標應該從動態的角度來看待，對于收入波動性高的行業來說，短期內出現虧損為正常的現象，這時應該用平均的盈利作為市盈率計算，或者使用未來的預期盈利來計算市盈率，這樣的市盈率才有意義。
  7. 3. the correlations are significant between sea - ice area index of kara barents and greenland seas, which locate on the north of the continent of europe and asian, and spring sand - storm ' s occurrence times in ningxia

    3 、寧夏春季沙塵暴發生次數與歐亞大陸北部的喀拉海、巴倫支海、格陵蘭海冰面積指數之間有顯著的相關關系。
  8. Based on sand - storm ' s occurrence times data in ningxia, arctic sea - ice area index data, height and wind fields data of ncar / ncar reanalysis, the basic variable rules and anomalous air circulation background fields of spring sand - storm ' s occurrence times in ningxia are systematically analyzed. more attention was paid on studying the tele - connections between arctic sea - ice areas and spring sand - storm ' s occurrence times in ningxia, and impossible affecting process of greenland sea - ice areas " anomalies on sand - storm ' s occurrence times. the results are as follows : 1

    本文根據寧夏沙塵暴發生次數資料、北極海冰密集度資料和ncar / ncep再分析資料，較系統地分析了寧夏春季沙塵暴發生次數的基本變化規律及其異常的大氣環流背景場，重點研究了北極海冰與寧夏春季沙塵暴發生次數之間的遙相關關系以及格陵蘭海冰異常變化對沙塵暴的可能影響途徑，結果表明： 1 、夏春季沙塵暴發生次數在1960 - 2000年有明顯的年代際和年際變化特點，總體呈減少趨勢，且在1984年發生了明顯的突變，有10年和7年左右的周期。
  9. Through statistics and analysis of fluid a nomaly characteristics, this paper obtained the time distribution characteristics of fluid a nomaly of the moderately strong earthquakes, especially those with intensity v, earth quakes in beijing and its adjacent area, and summarized the leading time of each phases anomaly before the earthquakes, which can be regarded as index of occurrence time of earthquakes

    通過對流體異常特徵的統計分析，給出了北京及鄰近地區的中期、中短期、短期和短臨異常的時間分佈特徵，並對地震前各階段異常的超前時間進行了總結，該時間可作為發震時間的預測指標。
  10. Returns the one - based index of the specified occurrence of a character string within an expression

    返回表達式中指定出現的字元串從1開始的索引。
  11. By analyzed the wheat dry - hot wind observation data in 1982 to 2002 of tianjin, it determined the dry - hot wind meteorological index in different wheat periods in this article, in addition, it summarized the dry - hot wind occurrence time, type, days and characteristic of occurrence trends in 10 years

    摘要通過對天津市1982 - 2002年乾熱風觀測資料的分析，確定了小麥不同生育時期的乾熱風氣象指標，總結出天津麥季乾熱風的發生時間、類型、發生日數規律以及近10年麥季乾熱風的發展趨勢等。
  12. Returns the index of the first occurrence of a given value in a range of this collection

    返回在此集合范圍內給定值的第一個匹配項的索引。
  13. You can mark each entry one at a time, or have word automatically mark each occurrence of each index entry that you specify

    可以一次標記一條索引項，也可以讓word自動標記所有指定的索引項。
  14. Searches for an element that matches the conditions defined by the specified predicate, and returns the zero - based index of the first occurrence within the range of elements in the

    中從指定索引開始並包含指定元素個數的元素范圍內第一個匹配項的從零開始的索引。
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