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iow temperature
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  低温
     The transport property in GaAs /Al_xGa_(1-x)As modulation doped he-tero- structures for HEMT devices is investigated by magnetic field varying Hall method under the conditions of low field (B<0. 6T)and Iow temperature(T=77K).
     采用变磁场霍尔效应方法,在低磁场(B<0.6T)和低温(T=77K)条件下,研究了HEMT器件用调制掺杂GaAs/Al_xGa_(1-x)As异质结构材料的输运特性。
短句来源
     Under the treatment of Iow temperature(2℃ or 5℃)in dark for 1-2 days,the activity of both superoxide dismutase(SOD) and peroxidase(POX)in the rice seedlings of these varieties of different cold-endurance in Yunnan Plateau were decreased with varying degress.
     经低温(2℃或5℃)暗处理(1-5d)的耐寒性不同的云南高原水稻幼苗,超氧物歧化酶(SOD),过氧化物酶(POX)的活性均有不同程度的下降。
短句来源
     The later two stytes of mixing process are of a little difference from the traditional one. The angular gravel of breccia dolomite which has the same origin as the massive dolomite, replaced by Iow temperature hydrothermal, has a higher trace element value of Fe~(2+), Mn~(2+), Sr~(2+), Ba~(2+).
     角砾白云岩中的白云岩角砾与下伏白云岩成因相同,但受后期低温热液的交代,使角砾白云岩的Fe~(2+)、Mn~(2+)、Sr~(2+)、Ba~(2+)显较高值,且有序度降低,最强衍射峰面网间距d_(104)值增大。
短句来源
     According to the tempreature and the speed of growth and development, we point out that: Iow temperature is lower than 25. 5℃, 25. 6~27. 9℃ is suitable temperature, high temperature is higher than 28℃.
     根据未展开叶生长速度与展开叶感光效应规律提出:气温<25.5℃为低温; 25.6~27.9℃为适宜温度;
短句来源
     Iow Temperature Storage of S.spontaneum pollen and Their Viability
     甘蔗花粉低温贮存与生活力
短句来源
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  “iow temperature”译为未确定词的双语例句
     After were investigated quantitatively the influerce of microstructure parameter,conditional stress and environmental condition on low temperature brittle fracture,the three dimensional iow temperature brittle fracture diagram was established preliminarily,and its applications in the diagnosis,prevention,safe e-valuation and design was discussed.
     通过对38CrA钢显微组织参量、工作状态应力和工作环境条件对冷脆断裂的定量或半定量的研究,初步建立了3维的断裂应力控制的冷脆断裂的雏型,并讨论它在冷脆断裂和预防、冷脆安全评估及冷脆断裂控制设计等方面的应用。
短句来源
     Results show that nano-composite WC-Co powder with 100-300 nm and no ti phase can be synthesized by this method. This method has many advantages such as Iow temperature carbonization, easy controlling of carbon content and easy scale production.
     结果表明:用直接还原碳化法在950℃碳化4h可以得到100-300 nm、无η相的WC-Co复合粉末,该法具有碳化温度低、碳含量容易控制、适合工业化生产的优点.
  相似匹配句对
     T is temperature, ℃.
     T为温度,℃。
短句来源
     T-temperature, K;
     T—溶液温度,K;
短句来源
     Iow Temperature Storage of S.spontaneum pollen and Their Viability
     甘蔗花粉低温贮存与生活力
短句来源
     THE APPLICATION OF STATISTICAL METHOD TO GRAIN STORAGE IN IOW TEMPERATURE
     数理统计在低温储粮技术研究中的应用
短句来源
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  iow temperature
However the Iow temperature results, where the isochores are straight, were poor.
      


The slale-of-crts of the plasma chemislry is reviewed in the paper. Besides the fabricatiori of the fine-line pattern,the reactive ion etching can be used for the cleaning and surface treatmenl of electronic malerials, the frequency trimming of the narrow-band SAW devices etc.The plasma development, anodization , polym-erization and PCVD are discussed briefly.By virtue of various salient features revealed inherently by these iow-temperature plasma technique such asenergy-saving, material-saving,contaminalion...

The slale-of-crts of the plasma chemislry is reviewed in the paper. Besides the fabricatiori of the fine-line pattern,the reactive ion etching can be used for the cleaning and surface treatmenl of electronic malerials, the frequency trimming of the narrow-band SAW devices etc.The plasma development, anodization , polym-erization and PCVD are discussed briefly.By virtue of various salient features revealed inherently by these iow-temperature plasma technique such asenergy-saving, material-saving,contaminalion reducing and lower cost,a broad diversity of new applications, have been devited. Undoubtly, this is a promising technique for the solid state electronics.

本文回顾了低温等离子体技术的现况,介绍了反应离子刻蚀在材料表面加工、清洗及SAW窄带器件调频等方面的应用.本文还对等离子体显影、阳极化、聚合及PCVD等作了简要讨论.因为低温等离子体技术具有省能、省料、污染少、设备简单等优点,其应用将日益广泛,这是一种对固体电子学有重要意义的技术.

Hardened at low temperatures, free proline in the seedling of several crops (winter wheat, sprig wheat, naked oat and millet) was determined. There was not a correlation between proline and the crops' cold resistance at the normal temperature (25℃).But, when hardened at various Iow temperatures (12℃, 5℉,-5℃), there was a clear correlation between the proline content of these crops' seedlings and their cold resistance. The most suitable temperature was 12℃ and the maximum volume occurred...

Hardened at low temperatures, free proline in the seedling of several crops (winter wheat, sprig wheat, naked oat and millet) was determined. There was not a correlation between proline and the crops' cold resistance at the normal temperature (25℃).But, when hardened at various Iow temperatures (12℃, 5℉,-5℃), there was a clear correlation between the proline content of these crops' seedlings and their cold resistance. The most suitable temperature was 12℃ and the maximum volume occurred on the seventh day at this temperature. No obvious threshold temperature of the proline accumulation was found. The increase of proline at-5℃ was the sign that the crops might have been damaged.

本文对抗寒能力不同的冬小麦、春小麦、莜麦及谷子的幼苗,在1,300勒克斯光强下,经12℃、5℃及-5℃的低温锻炼后,观测其幼苗中的脯氨酸变化与抗寒性之间的关系。在正常温度(25℃)及2,500勒克斯光强下,脯氨酸含量的差异与上述作物幼苗的抗寒力无相关性。在1,300勒克斯光强下,经12℃低温锻炼三天后,供试作物的脯氨酸含量均比在正常温度下生长的幼苗有提高,其增长的幅度与作物幼苗抗寒能力完全一致。抗寒最强的冬小麦增长近六倍,其次是春小麦,增加了三倍,而抗寒力差的莜麦和谷子则只增加50—75%。供试作物在12℃、5℃及-5℃温度下的脯氨酸含量均比在正常温度时的高,我们认为在12℃及5℃的增加是作物对低温的一种适应性反应,而-5℃时的增长则可能是受害的标志,是蛋白质降解的结果。脯氨酸积累的高峰在12℃时是第七天。本文对脯氨酸积累的阈温及对光的依赖性问题也进行了讨论。

From the energy balance of 22 industrial aluminium electrolysis cells, it is seen clearly that the great potentiality of energy savings is to decrease the heat loss from the cells, and that the main way is to lower the temperature of electrolysis.The electrolyte of nNaF·AIF_3—Al_2O_3—CaF_2—MgF_2 system was carefully studied. The melting point of the system decreases with the lowering of the NaF/AlF_3 mole ratio. There is a wide range of much lower temperatures, say less than 800℃.Some physical and...

From the energy balance of 22 industrial aluminium electrolysis cells, it is seen clearly that the great potentiality of energy savings is to decrease the heat loss from the cells, and that the main way is to lower the temperature of electrolysis.The electrolyte of nNaF·AIF_3—Al_2O_3—CaF_2—MgF_2 system was carefully studied. The melting point of the system decreases with the lowering of the NaF/AlF_3 mole ratio. There is a wide range of much lower temperatures, say less than 800℃.Some physical and electrochemical properties of the above mentioned system were studied at a temperature of 30℃ above its melting temperature. It was found that the vaporization loss of the molten electrolyte, the metal loss, density and electric conductivity of the molten electrolyte are all decreased with the lowering of the mole ratio. A layer of solid electrolyte was observed on the cathode carbon, when the temperature was excessively lowered. The carbon consumption is an interesting problem. When the mole ratio was in the range of 1.5-1.7, the carbon consumption is approaching to the theoretical value of 0.112 g/ampere-hour. The dissolution rate of alumina in the electrolyte decreases with the lowering of the mole ratio. However when the alumina was calcined at some lower temperatures, the rate of dissolution would increase rapidly. The current efficiency was measured in a 100 A bench scale electrolysis cell. When the temperature was in the range of 800-900℃, the current efficiency would be 85-95%. The high current efficiency is a great advantage of the low temperature electrolysis. In conclusion, the possibility of Iow temperature electrolysis is positively confirmed, and its shortcomings may be compensated with some remedial measures.

本文列举了22台工业铝电解槽的能量平衡数据,论证了节电的巨大潜力在于减少电解槽的热损失量,而其主要途径是降低电解温度。并依据长期的实验室试验结果,讨论了在800~900℃下实现低温铝电解的可行性。

 
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