過冷液 的英文怎麼說
中文拼音 [guòlěngyè]
過冷液
英文
supercooled liquid-
The total rna was isolated from pokeweed ( phytolacca americana ) leaves using the method of guanidine isothiocyante and used as template to amplify the total length and deleted mutant pokeweed antiviral protein ( pap ) gene by rt - pcr and then the pap gene was cloned into pgem - t vector. the sequencing results showed that pap gene had 99. 9 % identity comparing with the pap gene nucleotide sequence reported by lin et al ( 1991 ). the iptg - inducible expression vector containing the pap gene was constructed and transferred into e. coli bl21 ( de3 ) - plyss
將缺失型pap基因克隆到植物表達載體pbi121中,通過液氮冷凍法將重組質粒轉入農桿菌lba4404細胞中,然後採用葉盤法,在該農桿菌的介導下將pap基因導入普通煙草中,經過卡那黴素抗性篩選,最後獲得了轉pap基因的工程煙草植株,摩擦接種煙草花葉病毒( tmv ) ,與非轉基因煙草相比,能夠推遲癥狀表現達2月之久,說明pap基因能夠在其它植物體內產生有活性的高抗病毒的蛋白質。Judgment of clogging in liquid air subcooler installed in an air separation plant and solutions
空分裝置液空過冷器堵塞判斷與處理The experimental results showed that incipient boiling point decreased with increasing fluid subcooling and was independent of other factors, and that temperature overshoot enhanced with decreasing jet velocity and fluid subcooling
結果表明:沸騰起始過熱度隨液體過冷度增加而減小,與其他因素無關,而溫度過頭值則隨射流速度和液體過冷度減小而增加。According to rigorous procedures, an experimental study was carried out to investigate the effects of jet exit velocity, flow direction, fluid subcooling and nozzle diameter on hysteresis of boiling heat transfer with impinging circular submerged jets of highly - wetting liquids
摘要系統地研究了液體在圓形斷面噴嘴浸沒射流作用下沸騰熱滯后與射流沖擊速度大小、液體流動方向、液體過冷度和噴嘴直徑等因素的影響。Glass and pitch behave like supercooled liquids of very high viscosity.
玻璃和瀝青的行為很像具有極高粘滯性的過冷液體。Microforming progress of bulk amorphous alloys in supercooled liquid region
大塊非晶合金在過冷液相區微塑性成形的研究進展Application the retrieval coefficients of the city of changchun in april to a field experiments in jilin province, on april 22 demonstrate the airborne up - looking microwave radiometer can detect cloud liquid water and supercooled liquid water content
此外,本文將求得的長春地區4月的反演系數應用到長春4月22日的一次飛行實驗中,結果表明,能夠探測出雲中液態水和過冷水含量及其變化。Cloud liquid water content is always one of the most important quantities in many subjects and operations, particularly in modification weather the conditions of cloud liquid water and supercooled liquid water content are the predetermination conditions of seeding clouds
雲中液態水含量一直是多種學科和業務中都極其重要的量,尤其是人工影響天氣領域,雲中雲水含量及過冷水條件是決定可播性的先決條件。The project studied the direct contact condensation behavior of saturated steam on the subcooled liquid in passive gravity injection system. the experiment parameters were as follows : the initial pressure of prz ranged from 0. 2 0. 6mpa and the initial fluid temperature of core makeup tank ranged from 10 80. condensation phenomenon in cmt was observed
本課題進行了非能動重力補水系統中飽和蒸汽在過冷液面上直接接觸冷凝的實驗研究,研究了在加裝遮流板時,系統壓力0 . 2 0 . 6mpa , cmt初始溫度為10 80條件下壓力容器cmt中飽和蒸汽在過冷液面上冷凝的瞬態特性。The ratio of isopropyl alcohol and pure water and temperature in the process of freezing are considerated in the research of the preparation of the pt / c electrocatalysts with freeze - drying method. the result shows, when we use 300ml pure water to wash the carbon ( 40mg ) in isopropyl alcohol ( 20ml ) to alter the ratio of isopropyl alcohol and pure water, we get the electrocatalysts with high catalytic activity ; the use of the liquid nitrogen ( - 196 ) to freeze the suspension ( carbon and precursor solution ) can make the pt / c electrocatalysts in high dispersion
採用300ml純水對20ml異丙醇中的40mg碳載體進行洗滌抽濾,來改變預凍液中的醇水比例,通過冷凍乾燥制備pt / c的性能較好;採用液氮對預凍液進行冷凍(預凍溫度為- 196 )制備的pt / c催化劑性能較好;冷凍乾燥法可以有效地避免加熱乾燥過程中前軀體離子在碳載體表面的脫附和團聚,進而制備載量大、分散性好、粒徑較小的pt / c催化劑。For solution with certain compositons, it behaved as the growing temperature tg. when tg. is too high, the film was hard to grown or did n ' t grow well
而對于確定r值的熔液,則主要表現為過冷度的選取,也即生長溫度的選取。The experiment shows that the cooling rates increased dramatically as the ejecting speeding and the sub - liquid nitrogen sub - coolings increased
實驗研究表明隨著小樣品沉浸速度的增大、液氮過冷度的增加,冷卻速率明顯增加。7. sodium chloride has slight effect on the heat of micropcm phase transition, but it easily leads microcapsules to stick together. for the microcapsules feeding more than 6 % sodium chloride in the emulsion, their super - cooling can be prevented availably ; however, their mechanical intensity and their thermal stabilities turn worse and they cohere each other
7 、 nacl對微膠囊的相變熱影響較小,但容易造成微膠囊粘結;乳液中的naci濃度超過為6 %合成的微膠囊的過冷現象得到明顯改善,然而,膠囊的機械強度與耐熱性能均下降,微膠囊之間發生粘結。The paper is on how to set up lab platform of vapour spewing to uppercooling water surface to coagulate directly and to observe and analyse which vapour coagulate on the water surface, the results enable people to know the security system of nuclear power. the range of the pressure parameters of prz is from 0. 2mpa to 0. 6mpa, and the range of the initial temperature parameters of cmt is from 23. 5 to 78. 5, all of the testing points are 30 and there are fifty thousand testing data. many results of vapour spewing to uppercooling water surface vertically to coagulate can get. for example : coagulating can make the water of cmt surge forcefully when vapour spews to uppercooling water surface, too many vapour - bubbles come into being and strike the water of cmt owing to rupture continually, all these will strengthen the surge because of the vapour pressure of cmt
實驗中prz飽和蒸汽壓力變化范圍為: 0 . 2mpa - 0 . 6mpa , cmt中水初始溫度變化范圍: 23 . 5 - 78 . 5 ,實驗中測試工況30個左右,實驗測試數據50萬余個,得出了很多與非能動安全系統相關的蒸汽垂直噴向過冷水表面凝結時的結論:蒸汽垂直噴入過冷水表面凝結時會造成cmt中液面的強烈波動和振蕩,產生大量蒸汽汽泡,汽泡不斷破裂對cmt中液體帶來很大沖擊,勢必引起cmt中液體的振蕩,造成cmt汽空間汽壓不均勻,加強cmt液體的振蕩和波動。This special membrane is a porous hydrophobic membrane, which means that water vapor can pass through it, but drops of water cannot. by passing hot seawater through one side of the membrane, only the water vapor generated from the seawater passes through, the water vapor is then cooled by the cool water on the other side of the membrane, forming water drops, resulting in freshwater
在膜蒸餾過程中,被加熱的鹹水產生水蒸汽,水蒸汽透過膜,膜的特點是允許蒸汽透過而液態水卻不能通過,透過的水蒸汽遇到溫度較低的表面后冷凝,冷凝的水滴由於膜的特殊性不能透過膜而返回,將其進行收集便得到淡水。To improve the performance of ashp, an improved ashp system is presented. different from the original system, the new one can control the refrigerant flow rate by the sub - cooling of condenser and adjust the sup - heating of the compressor inlet vapor by the heater in accumulator. the simulation shows the new system not only has better dynamic characteristic of frost and defrost of ashp, but also has higher coefficient of performance
為改善空氣源熱泵機組的結霜除霜動態性能,提出了一種利用冷凝器過冷度來調節製冷劑流量,在氣液分離器里增加電熱裝置保持壓縮機進口過熱度的改進型系統,結果表明這種改進型系統不但可以改善系統的運行性能,同時能改善系統運行的經濟性,為機組的技術升級和產品更新提供了一個新的途徑。The rapid solidification of undercooled alloy and water is an important research subject in the field of materials science
深過冷液態金屬與非金屬的無容器快速凝固研究是當前空間材料科學領域研究的重要課題。It can settle the over heat problem of engine and too much power consumption and hydraulic oil system which often happens in the construction machinery engineering construct process. the control system is composed by egine cooling system and hydraulic cooling system, which can control the two part at the same time. the cooling fan can be disposed at anywhere which conquer the abuse of tradional drive style and use low power. the electric and hydraulic mix - drive cooling system settle the over heat problem of engine and hydraulic oil system effectively
針對工程機械在施工過程中經常出現發動機過熱、液壓傳動系統液壓油冷卻不足和耗能大等問題,本文設計了一種新型的電液混合驅動冷卻裝置控制系統。本系統將原冷卻系統分成發動機冷卻系統和液壓傳動冷卻系統兩個相對獨立的部分,發動機冷卻系統利用液力驅動,液壓油冷卻系統利用電動機驅動,控制系統由一片單片機同時對兩個冷卻系統進行控制。As the equipment was used to study the ultra - rapid cooling of a small sample in sub - liquid nitrogen, the high quenching speeds and the high cooling rates could be reached
將其應用於小樣品在過冷液氮中的超快速冷卻過程,可以實現較高的沉浸速度和冷卻速率。The law how the controlling parameters, such as the pressure before injecting, total pressure of the gas, the survey distance to exit, affect the discharge coefficient and the mean diameter of the spray is analyzed
通過冷態試驗,分析了液體噴注壓降、氣體總壓等控制參數及測量位置對噴嘴流量系數、霧化平均直徑的影響。分享友人