覆水冰 的英文怎麼說
中文拼音 [fùshuǐbīng]
覆水冰
英文
flooded ice-
New zealand is a country of rare beauty : glacial mountains, fast - flowing rivers, deep, clear lakes, hissing geysers and boiling mud
紐西蘭是一個風景奇美的國度:冰川覆蓋的山巒、水流湍急的江河、深邃清澈的湖泊、嘶嘶作響的間歇泉以及沸騰翻滾的泥漿。The main tests and researches are as following : to study the ac flashover characteristic of composite insulator in different icing states by imitating tests in multifunctional artificial climate chamber, and analyze the effect of ice amount and icing water conductivity on flashover voltage, put forward a flashover mechanism by analyzing the icing flashover process. to study the ac flashover characteristic of composite insulator in different altitude and icing states together by imitating tests in multifunctional artificial climate chamber, and mainly analyze the effect of altitude ( air pressure ) and ice amount on flashover voltage, and investigate the flashover mechanism. to investigate the effect of high altitude and icing on the hydrophobicity of composite insulators
本文主要進行了以下試驗研究: 1 )在多功能人工氣候室里模擬不同覆冰程度下合成絕緣子的交流閃絡特性,主要分析覆冰量和覆冰水電導率對閃絡電壓的影響,並對其覆冰閃絡過程進行機理分析; 2 )在多功能人工氣候室里模擬不同海拔高度和覆冰程度綜合作用下合成絕緣子的交流閃絡特性,主要分析海拔高度(即氣壓)和覆冰量對閃絡電壓的影響,並進行閃絡機理分析; 3 )研究高海拔和覆冰對合成絕緣子憎水性的影響。With regard to the special environment of high altitude and ice, this paper mainly studies the effect of altitude ( air pressure ), icing states ( ice amount ) and icing water conductivity on the ac flashover characteristic of composite insulators. furthermore, it analyzes the hydrophobicity of composite insulators in these environments
針對高海拔和覆冰地區特殊的環境,本文重點研究海拔高度(即氣壓) 、覆冰程度及覆冰水電導率等對合成絕緣子交流閃絡特性的影響,並且對合成絕緣子在高海拔和覆冰環境下的表面憎水性變化進行分析。Test results indicated : with the hoist of altitude, the increase of ice amount and the rise of pollutant, the average flashover voltage reduced. the character exponent generally depends on the insulator profile, ice amount, ice state and pollution severity etc. by means of a high - speed camera, a data acquisition system and high voltage test facilities, a series of the flashover processes on ice surfaces were record. the experimental results form this study and the subsequent theoretical analyses suggested : the thermal ionization of the air in front of an arc root resulted in arc movement ; the electrostatic force had an auxiliary effect of impelling arc propagation ; the electrical
通過對攝像機、數據採集系統及高壓試驗裝置記錄覆冰絕緣子表面閃絡電弧的發展過程的試驗結果進行理論分析得出:弧根周圍空氣的熱電離導致了電弧的發展,靜電場力對電弧的發展起到了加速作用,電擊穿僅發生在閃絡最終的跳躍階段;通過測量閃絡過程中的放電電壓、泄漏電流、閃絡時間、覆冰水電導率、電弧長度及電弧半徑等參數,得到了不同階段電弧(電弧起弧階段、電弧發展階段及完全閃絡)的發展速度、臨界電弧長度均隨覆冰水電導率的增加而減小。Lake vostok also interests astronomers because its waters are thought to be similar to those on europa, a moon of jupiter that has an ocean covered with ice that is kilometres thick
沃斯托克湖也引起天文學家的興趣,因為湖水被認為與木星衛星歐羅巴上,幾公里厚冰層覆蓋的海水類似。The longer the air gap is, the higher the inception voltage ; the inception voltage is lower with 2kv at wet ice than dry ice. while, there is not a distinct effect of water conductivity on the initiative voltage
間隙越長,起暈電壓越高;濕冰情況下間隙的起暈電壓比乾冰約低2kv ;而覆冰水電導率對起暈電壓沒有明顯的影響。By applying related theory of gas discharge and mathematical statistics, this paper more in - depth and systemic study the influence of the length of air gap, ice state, water conductivity and air pressure on the inception corona and pulse discharge characteristics, included the discharge frequency, discharge amplitude and time interval
根據試驗結果,用氣體放電和數理統計方法,分析了覆冰水電導率、冰的狀態(乾冰和濕冰) 、空氣間隙長度、氣壓和施加電壓等參數的變化對間隙模型的起始放電電壓、脈沖放電特性、放電頻率、放電幅值和時間間隔等的影響。The study results show that the minimum ac flashover voltage decreases with the increase of the ice amount accreted on the insulator surface by an exponential law, and the down - trend of the minimum ac flashover voltage will slow gradually with the bridging of the shed of the insulators by icicles, both the average saturated ice amount and the special exponent m of effect of ice amount for different insulators depend on the radius of shed and the air - gaps of the sheds of the insulators, and that the ac ice flashover voltage decrease with the decrease pressure ratio p / p0 ( rise of the altitude ) by power - law for different esdd and icing - states when the altitude is from 4000m to 5500m. the special exponent n, which show the effects of altitude on the flashover voltage, is various with the type of insulator, icing - states and the surface status of iced insulator etc., and that the minimum ac flashover voltage of iced insulators decreases by power - law with esdd or the freezing water conductivity for different ice amount and atmospheric
研究結果表明:在不同海拔高度和等值鹽密esdd下,絕緣子的最低交流冰閃電壓均隨覆冰量的增加而呈指數規律降低;當覆冰量增加到一定程度后,最低交流冰閃電壓隨覆冰量增加而降低的趨勢趨于飽和;不同絕緣子串的平均飽和覆冰量及閃絡電壓的覆冰量影響特徵指數m均與絕緣子的盤徑和傘距等因素有關;在海拔4000 5500m之間,不同等值鹽密esdd和覆冰狀態下,絕緣子的交流冰閃電壓隨海拔高度的增加(氣壓的降低)與p / p0呈乘冪關系降低,氣壓影響特徵指數n與絕緣子類型、覆冰類型、覆冰表面狀況等因素有關;當覆冰量和氣壓一定時,絕緣子的最低冰閃電壓均隨著等值鹽密( esdd )或覆冰水電導率的增加而呈乘冪關系降低,並逐漸趨于飽和。How different had this scene looked when i viewed it laid out beneath the iron sky of winter, stiffened in frost, shrouded with snow ! - when mists as chill as death wandered to the impulse of east winds along those purple peaks, and rolled down ing and holm till they blended with the frozen fog of the beck
這景色與我在冬日鐵灰色的蒼穹下,冰霜封凍積雪覆蓋時看到的情景多麼不同呀!那時候,死一般冷的霧氣被東風驅趕著,飄過紫色的山峰,滾下草地與河灘,直至與溪流上凝結的水氣融為一體。Based on a series of tests and investigations, this paper draws some conclusions as following by processing and analyzing the test data. the minimum icing flashover voltage of composite insulators decreases with the increase of ice amount, and the tendency of it accords with exponential function. however, the relation of the minimum icing flashover voltage with icing water conductivity accords with power function
通過大量的試驗研究工作,對試驗數據進行擬合和分析處理,得到了如下結論: 1 )合成絕緣子最低冰閃電壓隨覆冰重量的增加而降低,且其下降趨勢符合指數函數規律,與覆冰水電導率的關系符合冪函數規律。Even cloaked in ice, an oldsquaw duck finds hokkaido ' s winter climate bearable. the ducks ' densely packed feathers trap enough air to insulate them from frigid waters
即使身上被冰塊覆蓋,這只長尾鴨還是經得起北海道冬天的氣候;這是因為它緊密的羽毛能夠留住足夠空氣,讓它在冰寒的水中保持溫暖。The river, glad of new strength and rejoicing in the unison of all its waters, murmured to the shores in music, telling of its release from icy fetters, its swift flight from the snow - clad mountains, and the mighty work to which it was hurrying - - - the wheels of many mills to be turned, and great ships to be floated to the sea
河水也因為增添了新的力量而感到高興,它沉浸在水流重聚的歡樂之中,不斷以美好的音調向河岸喃喃絮語,敘述著自己是怎麼掙脫冰雪的束縛,怎麼從積雪覆蓋的群山奔騰跑到這里,以及它匆忙前往擔負的重大工作- - -無數水車的輪子等待著它去推動,巨大的船隻等待著它去送往海上。A third of this vast region, the world ' s biggest patch of frozen ground, is covered with lakes that are growing as subterranean ice melts
隨著地下冰層的溶化,這個世界上最大的凍土帶有三分之一的地區被這樣的湖水覆蓋,而且湖水的水量在不斷增長。Glow discharge appears when applied voltage further increases. with air gap increases, the mean discharge magnitude reduces. there is not an obvious effect of water conductivity on the mean discharge magnitude at dry ice, however, the mean discharge magnitude increases when water conductivity increases
乾冰時覆冰水電導率對平均放電量的影響不大;濕冰情況下,覆冰水電導率越大平均放電量越大,其平均放電量明顯高於乾冰。分享友人