冰緣期 的英文怎麼說
中文拼音 [bīngyuánqī]
冰緣期
英文
epiglacial epoch-
Given the present unusual global warming rate on an already warm planet, we can anticipate that areas with summer melt and rain will expand over larger areas of greenland and fringes of antarctica
在已經很暖的地球加上現在不尋常的全球暖化速率，我們可以預期，在格陵蘭與南極的邊緣，夏季融冰與降雨的地區會大幅擴張。This formation is dominated by a set of sandstone - mudstone dark clastic rock series which belongs to marginal marine deposit at the end of the gondwana carboniferous - permian glacier period
該組主要為一套砂巖泥巖的暗色碎屑巖系，屬岡瓦納石炭二疊紀冰川末期的邊緣海沉積。Studies of the petrology, textures and structures, depositional environment, contained fossils and age of the fluvial - lacustrine deposits indicate that they are the earliest record of the epiglacial area of the quaternary glacial period, representing the lower boundary of the quaternary glacial period
對該河湖相沉積的巖石、結構構造、沉積環境、所含化石特徵和形成時代等的研究表明，它是第四紀冰期冰緣區的最早沉積記錄，也是第四紀冰期的下限。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。And during the little ice age ). the main discrepancy of climatic and environmental changes of the southern margin of tarim basin and the eastern region of china appeared to be the collocation patterns which were the synchronism in cold or warm conditions and the difference in hydrological conditions. meanwhile, the discoveries of abrupt climate changes in the past have raised an urgent request for paleoclimatic and paleoenvironmental records
（ 2 ） 、中全新世氣候適宜期（ 6 . 7 3 . 0kab . p . ）尤其是近4 . 0ka以來及小冰期，南疆塔里木盆地南緣與我國東部季風區存在著冷、暖同步，干、濕相異的特徵；並以相對冷濕? ?相對暖乾的演變模式與我國東部季風區的相對冷干? ?相對暖濕的特徵相區別。分享友人