長年變化 的英文怎麼說

中文拼音 [zhǎngniánbiànhuà]
長年變化 英文
secular variation
  • : 長Ⅰ形容詞1 (年紀較大) older; elder; senior 2 (排行最大) eldest; oldest Ⅱ名詞(領導人) chief;...
  • : Ⅰ名詞1 (時間單位) year 2 (元旦或春節) new year 3 (歲數; 年紀) age 4 (一生中按年齡劃分的階...
  • 長年 : all the year round
  1. The study investigated aboveground growths of caragana korshinskii and artemisia ordosica planted in four modes, revealing that in different planting modes their densities, heights and canopy width and biomasses remained unchanged or tended to decrease slightly ; the young shoots of a. ordosica annually grew in a s - shaped cure and the young shoots of c. korshinskii grew fast in spring and grew slowly or cease to grow from july on ; the biomasses and leaf area indexes of c. korshinskii and a. ordosica annually varied in a double peak curve and there were 8 annual plants that invaded in the four planting modes and formed higher coverage ; the quadrat with only a. ordoska appeared to have obviously lower coverage and biomass that the other three quadrats

    摘要對騰格里沙漠東南緣2種人工植被檸條和油篙在4種配置方式下地上部分的生動態進行了研究,結果表明:不同配置方式下它們的密度、高度、冠幅和生物量基本不或略微呈下降趨勢;油篙新梢的動態呈s型曲線,檸條新梢春季生速度較快, 7月份以後生速度緩慢或基本停止生;檸條、油篙地上生物量和葉面積指數的均表現為雙峰型, 4種配置方式下共有8種1生植物人侵,並具有較高的植被蓋度;同其它3個樣地相比,純油篙樣地1生植物的密度、蓋度和生物量明顯偏低。
  2. The annual variations of the longitudinal and latitudinal circle lengths demonstrate that the southern hemisphere appears to be expanding, while the northern hemisphere looks like contracting

    計算地球經、緯圈度的率表明,南半球在擴張,北半球在收縮。
  3. Long - term changes in orthophosphate phosphorus in marine waters of hong kong, 1986 - 2005

    一九八六至二零零五香港海域正磷酸鹽磷含量的pdf
  4. Long - term changes in chlorophyll - a in marine waters of hong kong, 1986 - 2005

    一九八六至二零零五香港海域葉綠素- a含量的pdf
  5. The precipitation frequencies is analysed according to 1956 ~ 2000 years of rainfall record series in baoding area. the features of distribution of rainfall are detailed evaluated. firstly, the distribution of monthly precipitation is not even. for instance. the annual rainfall amount is about 548mm in whole year, about 80 % of them in summer season. secondly, yearly variation of rainfall is greater. thirdly, the abundant years usually are followed by short years, but the important changes have taken place in the last decades. before 70 ' s the abundant years took the dominant position, from the 70 ' s to the middle of 80 ' s the short years took place more frequently than ever. after the later of 80 ' s, the short years hold the main position. the above knowledge is instructive for guiding the rainwater resources effective utilization

    本文利用1956 2000保定市的系列降雨資料,對保定市降水量進行了頻率分析、分析和多分析,明確了保定市降水量內、際間的情況:保定市降水量內分配不均,汛期( 6 - 9月)占降水量的81 。保定市降水量際間大,豐水和枯水交替發生, 70代以前以豐水段為主; 70代到80代前期降水量豐枯交替頻繁,總的接近於枯水段; 80代後期至今以枯水段為主。這種降水分佈規律對農業生產雨水資源的高效利用具有重要的指導意義。
  6. Then the paper investigated the regularity of different oil indices using time series statistical analysis method, which suggested that there are some regular components in it, including long - term secular trend, seasonal component and long - term cyclical component. the irregular component also plays an important part in it, mainly including the policy of opec, war, all kinds of international convention for the prevention of pollution from tankers and so on. and then a study of simulation and forecasting performance of arima time series model was conducted to crude oil indices, evidence shows that arima model performs better, especially for short - term forecasting

    在此基礎上,本文以時間序列分析作為基礎研究手段,以德國海運費率指數公布的19801月至199912月的四類油運費率指數為研究對象,分析了四類油運費率指數的趨勢、季節規律、期周期循環規律和不規則規律,並應用arima時間序列模型對160000dwt以上的原油運費率指數進行了短期預測,取得了較好的預測效果。
  7. However, every aspect has different developmental condition, with activity being the most stability factor and other four aspects having greater variabilities across ages

    情緒性、反應性、社會抑制和專注性均隨齡增發展,其轉折齡各有不同。 4
  8. Long - term changes in total inorganic nitrogen in marine waters of hong kong, 1986 - 2005

    一九八六至二零零五香港海域總無機氮含量的pdf
  9. The annual averages of the density of phytoplankton and chl. a showed two peaks. the abundance of phytoplankton remained dominant from july to october in 2001, and gradually decreased from october in 2001 to february in 2002. the density began to rise from march, and up to the peak in april

    浮游植物的總細胞數和葉綠素的周模式為雙峰型, 20017至10月是浮游植物的夏季高峰期,此後直到20022月浮游植物豐度逐漸降低,浮游植物從3月開始增,至4月達到浮游植物的春季高峰,之後浮游植物異常減少,導致2002夏季的低谷。
  10. Long - term changes in nitrate nitrogen in marine waters of hong kong, 1986 - 2005

    一九八六至二零零五香港海域硝酸鹽氮含量的pdf
  11. There are 6 dominant spatial patterns : same distribution allover the country ; the seesaw between the regions of south of the yangtze river and mid - lower reaches of the yellow river ; the seesaw between the regions over the yangtze river and the yellow river and the south part of south china ; coherent variations over the yangtze - huaihe river basin and north - east china and opposite variations in the regions of north china and north - west china and south - east part of china ; the seesaw between the east part and the west part of china ; coherent variations over mid - lower reaches of the yellow river and south china and opposite variations in the yangtze river basin

    近44來我國逐旬降水量特徵主要存在六種空間分佈型:全國大范圍地區特徵一致的分佈;江以南地區和黃河中下游地區降水量分佈相反;江、黃河流域和華南沿海降水量分佈相反;江、淮河流域和東北地區與華北、西北和東南沿海降水量分佈相反;我國東西部地區降水量分佈相反;江流域與黃河中下游和華南降水量分佈相反。
  12. Then the long time change feature of radiation climate over china is analyzed - the results show that, the radiation climate changes a little before 1950s. from 1950s to 1970s it is increasing, and it reached the apex in the 1970s. later it began to decline, up to the present

    通過總輻射值的10滑動平均曲線和累積距平曲線可以得到我國太陽總輻射氣候的趨勢特徵是: 50代以前,我國的總輻射比較平穩,沒有大的;在50代前後,總輻射開始呈現增的趨勢;在整個的70代,總輻射達到最高; 70代末80代初的時候,總輻射又開始了下降的趨勢。
  13. Long - term changes in ph in marine waters of hong kong, 1986 - 2005

    一九八六至二零零五香港海域酸鹼值的pdf
  14. Long - term changes of physical development for children and adolescents in shandong

    山東省兒童青少發育及體質的
  15. Long - term changes in e. coli in marine waters of hong kong, 1986 - 2005

    一九八六至二零零五香港海域大腸桿菌含量的pdf
  16. On the premise of the study about the developing of xi ' an city ' s water supply and the great variety in water supply and the shortage of water resource, aiming for the furthest benefit from the configuration of water supply source of xi ' an city and facilitating it ' s development, this paper analyzed the characteristics of water supply sources and its changing quantity, the rising demand of water in city and the situation about water supply source, studied the problem about water supply via a variety sources, raised the principles of optimized configuration of variety sources, built the model of water demand forecasting and optimized configuration, studied the configured plan and its managing pattern

    本論文從研究西安市城市供水的發展過程入手,重點分析了城市供水水水源和城市用水需求增特點,在城市供水狀況相當的時期內將表現為供大於求的重大和西安市資源性缺水的現實沒有改的背景下,以實現最大限度地發揮城市供水系統的作用合理配置緘市供水水源,促進西安社會經濟的持續、快速、健康發展的總體目標,研究了運用多水源科學合理的供水問題。分析了西安市城市供水水源狀況、用水量特點以及各水平需水量,提出了多水源優調配的原則,建立了需水預測模型與優調配模型,初步研究了西安市城市供水水源合理配置方案和相應的管理模式。
  17. The programme entered the second phase in 1992, which is an on - going programme so that any long term changes in the environmental radioactivity can be determined

    第二階段的環境輻射監測計劃在一九九二展開。這是一項持續進行的計劃,目標是監測香港環境放射性水平的任何
  18. Long - term changes in temperature in marine waters of hong kong, 1986 - 2005

    一九八六至二零零五香港海域海水溫度的pdf
  19. The analysis of the probability of maximum temperature in south china during the summer of 2003 revealed that this event can ' t be considered as a reflection of long time trends, but rather than an episode under interannual variability

    分析最高氣溫的概率分佈特徵,得出2003夏季江南、華南地區出現的極端酷熱天氣,只是的表現,而不是趨勢的反映。
  20. The assistant director of the hong kong observatory, mr yeung kai - hing, said, " while the sea levels and their inter - annual variations at various parts of hong kong waters are not all the same, the long - term sea level change at the victoria harbour agrees well with that in the south china sea

    香港天文臺助理臺楊繼興指出:本港各水域的海面高度及都不盡相同,而維多利亞港海平面的與南海海平面的相當一致。
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