precipitation 中文意思是什麼

音標 [priˌsipi'teiʃən]
precipitation 解釋
n. 名詞 1. 猛然摔下，落下。
2. 猛沖；急躁，輕率，魯莽。
3. 【化學】沉澱（作用）；降雨（量）；（雨、雪等的）降落。

  1. Abundant precipitation is more important than extreme cold.

    豐富的降雪量比酷寒更為重要。
  2. The cell extract aliquots were added by ammonium sulfate with 30 %, 40 %, 50 %, 60 %, 70 %, 80 % and 90 % saturation, separately. the activities of sod for the re - suspensions were detected after dialysis and centrifugation. it was found sod activity could be detected after the precipitation by ammonium sulfates with 30 % saturation or above, and the highest sod activity could be obtained by precipitation of ammonium sulfate with 80 % saturation

    Maltophilia276菌株細胞提取物中分別加入飽和度為30 、 40 、 50 、 60 、 70 ， 、 80和90的硫酸銨，經過透析、離心、重新懸浮后檢測sod的活性發現：當硫酸銨的飽和度為30時，其活性可檢測出sod活性，當硫酸銨的飽和度為80時，檢測出的sod活性最大。
  3. Under the circumstances, gypsum or anhydrite could accumulate to form beds many meters thick, without any co-precipitation of halite.

    在這種環境下，石膏或硬石膏可以堆積成許多米厚的巖層，而沒有任何石鹽伴生沉澱。
  4. The perennial vegetation is expected to a. ordosica dominated and h. scoparium stably co - existed, together with an annual plant population of e. poaeoides and b. dasyphylla, which is greatly fluctuated with annual precipitation pattern

    其將與因年際間降水量及其分佈差異引起的種群密度等特徵波動的一年生草本小畫眉草和霧冰藜種群長期共存。
  5. The result indicates that key stages include the growth stage of late autumn treetop 、 bud differentiation stage and anthesis stage, and that key climate factors are temperature, precipitation, rainfall days and sunlight time

    結果表明：氣候條件影響廣西地區龍眼產量的關鍵時期為晚秋梢生長期、花芽分化期和開花座果期，關鍵氣候因子分別為氣溫、雨量、雨日和日照時數。
  6. Safety technical specifications for the operation of hail suppression and precipitation enhancement with 37 mm antiaircraft gun

    37mm高炮防雹增雨作業安全技術規范
  7. Both calcium and phosphorus on the surface layer induced the precipitation of apatite on titanium

    鈦表面的鈣和磷都能誘導羥基磷灰石的沉積。
  8. The enhancement of the surface roughness also increased the apatite precipitation and the adsorption of the protein and the osteoblast

    表面粗糙度增加也促進了羥基磷灰石的沉積和蛋白質與細胞的吸附。
  9. Major treatment methods for arsenic include sulfide precipitation, or complexation with polyvalent heavy metals.

    砷的主要處理方法有硫化物沉澱法，或與多價重金屬絡合。
  10. The faults controlled the mineralization mainly and connected the deep with the surface by the upward migration of the deep - derived auriferous metallogenetic fluids via the fractured zones and by their later precipitation

    提出了斷裂構造對成礦的主要控製作用，它起著溝通深部與淺部的作用，並使深部的含金流體沿斷裂破碎帶上升、沉澱而成礦。
  11. Besides, the upward motion on the aweather slope of main mountains of zhoushan archipelago can induce more precipitation and orographic highs

    另外，氣流爬越島嶼的主要山脈時的上升運動，會導致迎風坡的降水增多，並誘生中小尺度的地形高壓。
  12. Four - dimensional variational assimilation of aws precipitation data

    用四維變分法同化自動站降水資料
  13. The activation energies of crystal growth were calculated to be 15. 9kj mol " 1 and 148. 7kj mol " 1 respectively. cerous nitrate as originating material, ammonium hydrogen carbonate as precipitator, nanocrystalline cec > 2 powders were prepared by precipitation process. during the experiment, reacting solution was heated by microwave energy

    採用碳酸氫銨作為沉澱劑，聚乙二醇等表面活性劑為保護劑，採用逐滴加入沉澱劑，微波加熱代替傳統加熱的均相沉澱法，制備出了粒度小、分散性好的ceo _ 2納米粉體。
  14. Precipitation and height above sea level is good in spatial. the model reflect characteristic of the theory of mountanious climatology effectively

    建立的降水空間分佈模型，可很好地反映山地氣候的特點。
  15. The cline is considered the probable result of geographic trends in precipitation, temperature, and perhaps also photoperiod.

    人們認為這種梯度變異可能是降水量，溫度也許還有光周期等地理趨勢造成的結果。
  16. First, based on the historical data of 20 years of henan province, the cloud seeding operation cases in april and october in the central region of henan province were evaluated by cluster - analysis - based floating control historical regression method with uniform precipitation and atmospheric precipitable water as meteorological covariates, cluster - analysis - based floating control historical regression method with uniform precipitation as meteorological covariate, and floating control historical regression method ( fcm )

    首先，根據河南省近20年的歷史資料，分別用以降水量為協變量的ca - fcm方法、以降水量和整層大氣可降水量為協變量的ca - fcm方法和浮動對比區歷史回歸統計檢驗方法（ fcm ） ，對河南省4月和10月增雨作業進行評估。
  17. Three evaluation methods for the nonrandomized precipitation enhancement operation effects have been developed based on the regional rainfall control and meteorologit cal covariable correlation : dopple ratio analysis evaluation method using regional rainfall ten - dency control for single cloud seeding operation case ; regression analysis evaluation effects on the bases of regional correlation and developing tendency of rainfall ; and multiple regression analysis with meteorological and physical covariables

    本文根據區域趨勢控制和氣象-物理協變量相關設計了三套非隨機化人工增雨作業效果評估方案：個例作業區域趨勢對比雙比分析評估方案、區域趨勢相關回歸分析評估方案和氣象-物理協變量多元回歸分析評估方案。
  18. Then, six evaluation methods ( double ratio analysis evaluation method using regional rainfall tendency control for single cloud seeding operation case, regression analysis evaluation effects on the bases of regional correlation and developing tendency of rainfall, multiple regression analysis evaluation effects on the bases of regional developing tendency of rainfall, cluster - analysis - based floating control historical regression method with uniform precipitation and atmospheric precipitable water as meteorological covariates, cluster - analysis - based floating control historical regression method with uniform precipitation used as meteorological covariate, and float ing control historical regression method ) were compared and analyzed with the case of the cloud seeding operation on 5 april 2002 in henan province

    然後，以河南省2002年4月5日飛機增雨作業為個例，對作業區域趨勢對比雙比分析評估方案、區域趨勢相關回歸分析方案、區域趨勢多元回歸分析方案、以降水量為協變量的ca - fcm方法、以降水量和整層大氣可降水量為協變量的ca - fcm方法和fcm方法6種評價方案進行分析比較。
  19. In the end, cluster - analysis - based floating control historical regression method with uniform precipitation and atmospheric precipitable water as metoorological covariates could more validly evaluate efficiency of cloud seeding operations and significant level of ca - fcm method was higher than the other methods, because it adopted cluster analysis which highly improved the correlativity between rainfall distributions in the control area and target area, and used grid interpolation which enhanced exactness of calculating precipitation rainfall, and chose atmospheric precipitable water as the covariant which increased the inferential accuracy of natural rainfall on the cloud seeding operational area

    最後，得到以降水量和整層大氣可降水量為協變量的ca - fcm方法，由於採用聚類分析（ ca ）方法，提高了對比區和影響區相關性；採用網格插值技術提高了雨量的計算準確度；引入了不受催化影響的物理協變量（整層大氣可降水量） ，提高了作業區自然降水量估計值的準確性；所以評估效果最好，顯著水平高於0 . 05 。
  20. Coagulative precipitation tank

    凝結沉澱池
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