ice period 中文意思是什麼

ice period 解釋
冰凍周期
  • ice : n 1 冰,冰塊。2 〈英國〉冰淇淋,冰淇淋 (= ice cream); 〈美國〉冰涼飲料[點心]。3 冰狀物,糖衣。...
  • period : n 1 時代;期;時期;期間;階段。2 〈the period〉現代,當代。3 周期;【地質學;地理學】紀。4 終結...
  1. All the turn - point year is around 1974. another feature of interdecadal variability of interannual relationship between winter sea - ice extent of davis strait and summer, july and august rainfall of 160 stations is that the interannual correlation pattern have changed from east - west pattern to " + - + " north - south pattern around 1974. the interdecadal characteristics of correlation distribution pattern of interannual relationship between winter sea - ice extent of davis strait and summer, july 500hpa height of northern hemisphere are : " - + - " pattern from the beginning of novoya zemlya island, by way of balkhash lake to japan sea which is strongly negatively correlated with the rainfall of north china at the same period before 1974 and " + - " pattern from the beginning of ural mountains, by way of bujr lake to hetao basin which is badly correlated with the rainfall of north china at the same period after 1974

    冬季戴維斯海峽海冰面積與華北夏季及7 、 8月降水年際關系有明顯的年代際變化特徵:其與夏季總降水的年際關系由1974年前較好的負相關在1974年後變差,與7月降水的年際關系由1974年前較好的負相關在1974年後變弱,與8月降水的年際關系由1974年前較好的負相關在1974年後變差;另一方面,其與中國160站夏季及7 、 8月降水的年際關系在1974年前後發生變化的主要特徵是:與夏季總降水、 7月、 8月降水的年際關系由1974年前的相關系數分佈呈「東西型」變為1974年後相關系數分佈呈「 - + - 」的「南北型」 。
  2. Ireland was separated from the european mainland in the period following the last ice age

    愛爾蘭島在上個冰川期之後就與歐洲大陸分開了。
  3. This paper introduces the river ice study and project experience during freezing period mentioned above

    本文對上述河冰問題的研究成果以及冰期輸水的一些工程經驗作了簡單介紹。
  4. In order to find out safe methods for water transfer during freezing period, studying the formation and development regularity of the river ice has been concerned on by many countries

    研究河冰形成和演變規律,尋求相應的解決辦法保證冰期安全輸水成為許多國家關心的重要問題。
  5. Most of the ice age spans a period of time for which no element has an appropriate decay rate

    冰川期的大部分期間都找不到具有合適衰變率的元素。
  6. The main work and conclusion for this paper is as following : according to the flashover test results of several kinds of iced insulators under positive voltage and negative voltage, this paper obtained : for the single porcelain insulator, the single glass insulator and the composite insulator bridged completely by icicle, the metal cathode ' s strong ability of emission electron is the primary reason that results in the lower negative flashover voltage ; the position difference of the high resistance district in method anode side results in that porcelain insulator cluster and glass insulator cluster have an evident effect of polarity ; when less ice and no icicle at the brim of the sheds, due to numerous non - polar arcs on the composite surface, the effects of polarity of composite insulator was lost using the test method of the average flashover voltage in the freezing period, dc flashover performances were investigated of several insulators with some typical structures and different material

    本文的主要工作和結論如下:在人工氣候室內,根據不同覆冰絕緣子正、負極性下的閃絡試驗結果,得出負極性電弧金屬陰極的強電子發射能力造成了單片瓷、玻璃絕緣子及被冰凌橋接的合成絕緣子有較低負極性冰閃電壓;正極性電弧金屬陽極側產生高電阻區所處位置的差異使得瓷和玻璃絕緣子串具有明顯的極性效應;覆冰較少時,合成絕緣子表面出現數量較多的非極性電弧使合成絕緣子無極性效應。利用覆冰期內平均閃絡電壓的試驗方法,對不同材質和結構的絕緣子在覆冰、低氣壓和污穢共存環境中的直流閃絡特性進行了研究。試驗結果表明,直流平均閃絡電壓隨著海拔的升高、覆冰量的增加以及污穢度的增加而降低,且其特徵指數與絕緣子結構、覆冰量、覆冰狀態、污穢度等有關。
  7. In contrast, the consensus view among paleoclimatologists is that the medieval warming period was regional, that the worldwide nature of the little ice age is open to question and that the late 20th century saw the most extreme global average temperatures

    然而,古氣象學家的共識與之不同,他們認為中世紀暖期屬于區域現象,全球性的小冰期則尚無定論,而且20世紀后葉的全球平均氣溫是最極端的情形。
  8. Global ice ages occurred at least three times in the period known as the proterozoic eon, first at 2. 3 billion years ago and again at 750 million and 600 million years ago

    原生代期間至少發生過三次全球性冰期,第一次始於23億年前,其後於7 . 5億與6億年前又再度發生。
  9. Abies yuanbaoshanensis having survived the quaternary period ice - age is significant not only to studying the occurrence and evolution of the chinese ancient south plant flora but also to the ancient climate and geography. especially, it has the scientific value of inquiring into the climate of the quaternary period ice - age and is called live fossil because it could provide the basis for studying the climatic change and the changes of plant

    元寶山冷杉是第四紀冰期倖存下來的瀕危物種,在廣西的發現,對于研究我國南方古代植物區系的發生和演變,以及古氣候、古地理有重要意義,特別是對第四紀冰期氣候的探討有學術價值,它是研究氣候變化和植物變遷的依據,是活化石。
  10. The second section is about the post - ice - age period with a sudden change in designs

    第二部分的媒體展覽區主要設計構思銜接著當進入了「冰時代」后,環境飛速地變化。
  11. The climate of this period is almost as warm and wet as the stage 5e of the last interglacial. the mean temperature is 2 - 4 c higher and the precipitation is much larger than that of the today, the holocene which we live in. while in the climatic records of deep ocean, antarctic and greenland ice - core, marine isotope stage ( mis ) 3 is a weakly warm period, though a little warmer than marine isotope stage ( mis ) 2 and marine isotope stage ( mis ) 4, evidently colder than the last interglacial and holocene favorable period

    末次冰期中期,即深海氧同位素第3階段的氣候在我國,尤其是青藏高原地區表現出明顯不同於深海沉積物和極地冰芯記錄的特徵:青藏高原古里雅冰芯的~ ( 18 ) o曲線表明3階段存在特強夏季風事件,其氣溫和降水接近於末次間冰期5e階段,超過全新世,其暖濕程度已經達到間冰期的程度;而深海氧同位素3階段在深海、南極、格陵蘭冰芯的氧同位素記錄中均為弱暖期,雖較2階段、 4階段溫暖,但顯著低於全新世大暖期和末次間冰期。
  12. The main conclusions of the research are shown as follows : ( 1 ) with meeting the comprehensive using demands including flood control, ice prevention and water supply of the main stream, aimed at the maximum generation electricity in a period of the reservoir regulation, built up the optimal regulation model of the longyangxia - liujiaxia system and sanmenxia - xiaolangdi system and adopted poa method to solve it, obtained long series compensation regulation results

    論文取得的主要成果如下: ( 1 )在滿足全河幹流防洪、防凌、供水等綜合利用要求的前提下,以水庫調度期發電量最大為目標,採用大系統分解協調方法,建立了龍劉和三小的優化模型,採用逐步優化演算法( poa )求解了該模型。
  13. The dry / wet changes of surrounding area of bohai sea during past 500 years are divided into 7 stages, based on dry / wet indexes ( d / w ) of this area from 1470 to 1985 then, the changes of dry / wet spatial types ( d / wst ) and its related dry / wet regional different iation ( d / wrd ) features among different stages are analyzed. the results show that there are 4 main kinds of d / wst in this area, whose notability and spatial distribution features in different stages are apparently different, which reflects, very well, the changing process of the d / wrd of this region in past500 years. further analysis also presents that, in warmer period, the d / wst and the d / wrd patterns are relatively unsteady, meanwhile, the dry / wet changing difference among different parts of the region is relatively great, but, in colder period, it is just on the contrary. however, in the most severely cold period of the little ice age, t he area ' s d / wst and the d / wrd pattern sareveryu nsteady, and its d / wrd extenti salsot he high estin the whole past 500 years

    用研究區1470 1985年的旱澇等級資料,劃分了該地區500年來旱澇變化的7個階段,討論了不同階段間旱澇型的變化及其旱澇區域分異意義,結果表明, 500年來研究區有4類主要旱澇型,各型旱澇在不同階段的重要程度及場型特徵均有較大差異,深刻反映了該地區500年來旱澇區域分異特徵的變化,通過對500年來旱澇變化與溫度變化的對比發現,較溫暖期,研究區的旱澇型及旱澇區域分異格局較多變,旱澇變化的區域差異性較大,較寒冷期,旱澇型及區域分異格局較穩定,旱澇變化的區域差異性較小,而在小冰期最寒冷階段,旱澇型及旱澇區域分異格局的變動十分頻繁,旱澇變化的區域差異性亦最大
  14. During the medieval warm period, the lasting time is shorter and shorter from the south to the north in china, and the east china is more obvious than the central china ; the beginning time of the little ice age in shennongjia region ( 1480aad ) is later than that in other regions ( 1420aad ), but they all display a persistent decrease process of temperature

    與中國東亞季風區各種溫度記錄對比表明,東漢時期是一較暖的時期,但冷暖程度不同;中世紀暖期大致從南往北時間跨度越短,中部地區沒有東部明顯;神農架小冰期開始時間( 1480aad )晚于其它記錄( 1420aad ) ,都顯示了持續的降溫過程。
  15. Producing ice during off - peak period of energy demand, which is then stored in tanks

    會在非用電高峰期運作,把冰貯存起來。
  16. Rough calculation of investment : 1 ) methyl carbonate : total investment is rmb100 million yuan ; investment return period is 4 years. 2 ) granular dry ice powder : total investment is rmb31 million yuan ; investment return period is 2 years. 3 ) salicylic acid : total investment is rmb25 million yuan ; investment return period is 3 years. 4 ) sodium carbonate : total investment is rmb50 million yuan ; investment return period is 3 years. 5 ) ethylene urea : total investment is rmb60 million yuan ; investment return period is 4 years

    投資概算: 1 、碳酸二甲酯項目總投資1億元,投資回收期4年; 2 、顆粒乾冰粉項目總投資3100萬元,投資回收期2年; 3 、水楊酸項目總投資2500萬元,投資回收期3年; 4 、輕質氧化鮮項目總投資2000萬元,投資回收期2年; 5 、碳酸鈉項目總投資5000萬元,投資回收期3年; 6 、乙撐脲項目總投資6000萬元,投資回收期4年。
  17. During initial contact with new friends, do not be disappointed by the seemingly indifferent response of others at an early stage, as an initial period of adaptation is needed for understanding each other. taking the initiative to break the ice is the best way to overcome obstacles in building up relationships with others

    與新朋友初接觸,由於彼此需要一段適應期互相了解,切勿因對方反應似乎冷淡就過早下判斷。自我主動才是打破彼此隔膜與顧忌的良方。
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