放熱變化 的英文怎麼說
中文拼音 [fàngrèbiànhuà]
放熱變化
英文
exothermal change
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放 :
releaseset freelet go
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After analyzing purple soil sampled from neijiang, leshan ofsichuan provinec and yuanmou of yunnan province, the contrast results of microbe quantity feature between surface and subsurface purple soil were obtained as follows. the content of soil organic matter, total and available nitrogen, phosphorous and potassium of surface was higher than subsurface, not relating to the type of purple soil and soil utilization way. the quantity of microbe _ bacteria, actinomyces and mould in surface purple soil was higher than subsurface, which indicated that the organic matter and airy condition in surface soil was more suitable for microbes growing. there was the same tendency in profile change of microbe quantity in purple soil located in temperate _ humid climate of sichuan basin in contrast with dry _ hot climate of yuanmou, yunnan. the nutrient situation of purple soil in sichuan basin shown that state of surface was better than subsurface, while in yuanmou of yunnan the state was on the contrary due to the degradation of surface soil
實驗室對四川內江、樂山和雲南元謀不同類型紫色土表層和亞表層微生物數量特性的比較分析表明:土壤有機質、氮磷鉀全量及其速效量均表現為表層高於亞表層,與紫色土類型和利用方式無關;三大類土壤微生物細菌、
放線菌和黴菌數量均表現出表層高於亞表層,表明紫色土表層的有機質和通氣性優于亞表層,適宜於這三大類微生物生長;溫濕氣候條件下的四川盆地和乾
熱氣候條件下的雲南元謀其紫色土微生物數量的剖面
變化具有相同的趨勢,唯土壤營養狀況在四川盆地紫色土中表現為表層優于亞表層,而在雲南元謀紫色土中由於表層土壤的退
化作用表現為亞表層優于表層的相反情況。
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Construction of a mass concrete is in the construction process, because of cement let out in large quantity hydration heat and surface of a mass concrete let out heat, make its temperature, humidity cause to ascend and descend, and it causable constringency transform will be unavoidable
大體積混凝土結構在施工過程中,由於混凝土中水泥熟
化時
放出大量的水
化熱及其隨后的表面散
熱,使其溫度、濕度出現升降
變化,並由此而引起的收縮
變形將是無法避免的。
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In a dutch oven or 5 - quart pot, melt butter over medium heat. add onion, bell peppers, and thyme ; cook, stirring occasionally, until vegetables are softened, about 5 minutes
去一隻5誇脫的鍋,
放入黃油,中活加
熱融
化。加入洋蔥、柿子椒、麝香草;持續攪拌加
熱大約5分鐘,直至蔬菜
變軟。
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The most important exothermal reactions in the crust can be expected from the chemical transformations of sulfides.
地殼中能夠料想到的最重要的
放熱化學反應是硫
化物的
化學轉
變。
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There is some about that retarders or retarding plasticisers really alter the total heat output or, for that matter, the rate of heat generation.
無疑地,緩凝劑或緩凝塑
化劑確實改
變了點總
放熱量或
放熱速度。
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It ' s the first time to explore the combustion characteristics of lpg / diesel mixing fuel engine, and find that, with the change of load and rotation, the changing trend of the ignition delay period of e10 mixing fuel is almost as identical as that of the diesel, but that of e30 mixing fuel is very different. comparing with diesel, the combustion of e10 is improved slightly, but that of e30 greatly changes ; the maximum eruptive pressure decreases ; the maximum pressure increase rate decreases ; the highest releasing heat rate increases ; the highest combustion temperature falls ; the ignition delay period extends
結果表明: e10混合燃料與柴油的著火滯燃期隨負荷和轉速的
變化趨勢基本一致; e30混合燃料與柴油則有所不同; eio混合燃料發動機的燃燒與純柴油相比,略有改善; e30混合燃料的燃燒特性發生明顯的
變化,最高爆發壓力下降,最大壓力升高率減小,最大燃燒
放熱率增大,最高燃燒溫度下降,滯燃期延長。
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It is necessary to include as a heat source in the thermodynamic energy equation at erm which represems the timerate of release of the latent heat of condensation of water vapor
譯為:有必要把代表水汽凝結潛
熱釋
放的隨時間
變化率的一項作為
熱源項包括在
熱力學能量方程中。
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The experiments showed that wc and vc can dissolve mutually in the carbonizing reaction. when wc ' s content exceeds vc ' s, vc will dissolve into wc and make wc ' s crystal lattice bring aberrance and become wc1 - x, contrarily when vc ' s content exceeds wc ' s, wc will dissolve into vc and also make vc ' s crystal lattice bring aberrance. the surface cermet composite has high rigidity and well wear - resistance
( 7 )採用鑄造燒結技術,通過加入毗顆粒和v班一vc的原位
放熱反應成功制取了碳
化物陶瓷質量百分數超過60 %的表面金屬陶瓷材料,實驗證實wc與高溫碳
化反應生成的vc相互可以很好的固溶,當wc的含量超過vc時, vc可以固溶到wc中,使wc的晶格發生畸
變,成為昵卜: ,反之當vc的含量超過wc的含量時, wc可以固溶到vc中,也會造成vc的晶格畸
變。
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To the large - scale atmosphere, we separate the terms of the horizontal vorticity converting into the vertical vorticity, which considered as the baroclinic terms, from the terms that not including horizontal vorticity by the rules of the p coordinate transforming to the z coordinate in the traditional vorticity equation, and carry out the scale analysis, and then conclude that the baroclinic terms are able to reach the same magnitude grade as the partial derivative of the vertical vorticity to time when it takes place the large scale precipitation in the summer monsoon period in china. by analyzing the game reanalysis data from april to august in 1998 in the region of chinese continent, we found that the baroclinic terms is important to the large - scale cyclone developing above the 600hpa, and the magnitude changing of the baroclinic terms is nearly in - phase as the monsoon movement, so which imply exactly that the magnitude changing of the baroclinic terms is the one of the natural characters of the summer monsoon evolution and equivalent to the movement rule of the subtropical high of the western pacific
在p坐標垂直渦度方程中,利用p坐標向z坐標轉換的公式將水平渦度向垂直渦度轉
化的所有項分離出來,這些項具有明顯的斜壓特徵,對其進行尺度分析后,得出在可以忽略潛
熱釋
放對渦度影響的對流層中、高層,此轉
化項是大尺度斜壓渦度發展的重要項。通過對1998年48月的game再分析資料進行實際計算也發現,轉
化項在東亞夏季風上升支的600hpa及以上層次對垂直渦度的局地
變化貢獻很大,不能忽略。同時發現水平渦度向垂直渦度的轉
化在南海季風爆發時和江淮梅雨入梅及發展過程中均有指示性意義,在南海季風爆發以後,在中國東南部地區,轉
化項的大小與夏季風的活躍和中斷等活動有著幾乎一致的
變化規律,這從側面也指出了,此轉
化項的
變化是夏季風演
變所具有的本質特徵,並且它反映出了西太平洋副高在中國大陸的活動情況。
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Recently, train is running faster and faster, and considering the stability and security, seamless welded rails ( swr ) are used as the train orbits gradually. the temperature of the rails will vary with weather. so that the rails may release the energy due to the metal characteristic of expanding or contracting with temperature, there is some badly distortion in the swr, worsly occurring accidents on expanding orbits. the portrait thermal stress ( pts ) of the swr should be monitored in some parts regularly, as to avoid such accident
近年來,隨著火車的提速造成的穩定和安全問題,軌道逐步轉為採用無縫焊接鋼軌,隨著鋼軌溫度的
變化,無縫鋼軌可能會因為
熱脹或冷縮的金屬特性並且在扣件阻力小而且路基較差的路段釋
放能量,可能會發生鋼軌嚴重
變形,更甚者會發生脹軌跑道等嚴重鐵道事故,為了避免發生如此事故,有必要定期對鋼軌的溫度應力進行檢測。
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By using the fundamental theories of combustion and a series of experimental study, the combustion characteristics of lpg are investigated. the main parameters such as indicator diagrams and heat release rate are calculated and analyzed
利用燃燒基本理論,通過大量試驗,探索了火花點發動機燃用lpg的燃燒規律和特性,計算和分析了發動機燃用lpg時的示功圖、
放熱率等主要燃燒特性參數的
變化。
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In our country, along with the economic system which transferred from planned economy to socialism market economy after the reform and opening to world, urban economy was developed greatly, and the original function structure and matter establishment of city could not adapt to social need as well. furthermore, with the growth up of socialism market economy, city was going through rapid and sustainable change, urban economy developed rapidly and urban land rearrangement was carried out unprecedented in scale and speed, and the latter was highlighted and turned into the key of building and hotspot of attention gradually
在我國,改革開
放后隨著經濟體制由計劃經濟向社會主義市場經濟轉
變,城市經濟得到迅速發展,城市原有的功能結構和物質設施均不能適應時代需要,並且隨著社會主義市場經濟的逐漸形成,中國城市正經歷著急劇而持續的
變化,城市經濟發展速度大大加快,城市土地整理也以空前的規模與速度展開,日益成為我國城市建設的關鍵問題和人們關注的
熱點。
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It is indicated that the hydration process of cement - based materials with slag, fly ash and silica fume is different in some degree from that of neat cement because of the difference in mineral structure and hydration mechanism. the periods of accelerating, decelerating and terminating are prolonged and hydration reaction decelerates. the second peak of rate curve of the heat evolution could be divided into two small peaks, which are contributed to the hydration of clinkers and mineral mixtures at the temperature of 30 but when temperature comes to 50, the two small peaks combine into one and the reaction accelerates
結果表明,與硅酸鹽水泥相比,由於礦物摻合料與水泥熟料在活性和水
化機理上的差異,水
化歷程有較大的改
變:多組分體系誘導期、加速期和衰減期延長,水
化反應速率明顯降低;低溫時,水
化放熱速率曲線上的第二
放熱峰細
化成分別對應于熟料和礦物摻合料水
化的兩個小峰;高溫時,反應速率加快,雙峰合併;進一步研究發現,摻合料的種類與摻量對水
化歷程也有較大的影響;建立了適用於多組分水泥基材料不同水
化階段的水
化動力學方程。
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Releasing steam heat from the mass concrete structures while solidifying leads to produce the temperature change and contraction
大體積混凝土在固
化過程釋
放的水
化熱會產生較大的溫度
變化和收縮作用。
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Releasing steam " heat from the mass concrete structures while solidifying leads to produce the temperature change and contraction
大體積混凝土在固
化過程釋
放的水
化熱會產生較大的溫度
變化和收縮作用。
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The results demonstrate that the upper limit of permafrost in this area had declined from 1970s to the middle phase of 1990, and permafrost has appeared degenerate tendecy, but since middle 1990s, permafrost have a stable state ; ground temperature of roadbed near the earth surface is higher than that of the natural ground, thawing time of roadbed near the earth surface is longer than that of the natural ground, the heat income within the permafrost is greater than the heat release from the permafrost during anannual period, the heat accumulation within the permafrost is temporarily appeared as temperature rising, but with the heat accumulation within permafrost growing up year by year, permafrost temperature will become higher gradually, and strong thawing of permafrost could be happened in the region
結果表明:風火山地區從20世紀70年代到90年代中期凍土上限下降,凍土出現退
化現象,從90年代至今凍土趨于穩定;路基近地表地溫明顯高於對應天然地表下的地溫,路基近地表經歷的融
化期長于對應天然地表,進入多年凍土區的
熱收支也呈現出吸
熱明顯大於
放熱的周期性
變化,進入多年凍土的
熱積累暫時以增高地溫耗
熱為主,但隨著凍土吸
熱量的逐年積累、凍土溫度的不斷升高,本區凍土可能發生強烈融
化。
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In addition, bp has distinctive strengths in energy statistics and information, risk assessment and management, corporate governance, and hse. it actively participates in the discussion of major global hot issues ( like global climate change and greenhouse gas emission ) and put into practice mitigation measures
另外, bp公司在信息統計,風險預期與管理,企業良治,健康,環境與安全( hse )等方面都具有獨到的優勢,並積極參與全球重大
熱點問題(如全球氣候
變化和溫室氣體排
放等)的探討和實踐。
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Simultaneously how to reduce the quantity consumed by the system of refrigerating is also a forward question for study in thermal - physical engineering. at the basis of analyzing thoroughly the stirling - cycle, the thesis puts forward a new refrigerating cycle in house - hold refrigerator, which adopts the two - state, two - component working fluid
本文在對stirling循環深入分析的基礎上,利用其定溫吸
熱、
放熱的優點,同時採用相
變工質作為製冷劑,利用其在低溫下氣
化吸
熱製冷單位質量工質的製冷量大的特點,提出了採用雙相雙組份工作介質的新型家用冰箱的製冷循環。
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In the theoretical aspect, performance analytical model of was proposed, in which allowances were made to allow for variable cross - sectional area, include the heat release of chemical reaction, and allow for mass addition. software was generated, and performance of rocket ejector was analyzed accounting for heat release location, flow parameters and structural configuration
在理論方面,建立了引射火箭模態的性能分析模型,該模型考慮了
化學反應
放熱、加質和
變幾何截面的影響;編寫了相應的軟體,並結合
放熱位置、流動參數和發動機結構進行了引射火箭的概念設計。
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Microcalorinetric study on b. thuringiensis by using an lkb - 2277 bioacitivity monitor, the thermogenic curves of different b thuringiensis strains ybt - 833 and ybt - 833 - 2 - i, have been determined. the metabolism heat output revealed the heat output was correlated to the yield of the protein, the higher yield protein, the less heat output. a microcalorimetric technique based on the bacterial heat - output was explored to evaluate the effect of various promoters and different plasmid original replicons on the expression of gfp
不同蘇雲金芽胞桿菌基因工程菌的微量熱變化利用生物活性檢測器lkb - 2277研究殺蟲晶體蛋白含量不同的兩株菌ybt - 833 、 ybt - 833 - 2 - 1的熱動力學變化,發現菌體合成殺蟲晶體蛋白的過程是一個耗能的過程,殺蟲晶體蛋白產量高的菌株向外釋放的代謝熱少,反之亦然。