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- high emission photocathode 高发射光电阴极
- A carbon nanotube cathode with high emission current has been fabricated with the screen printing method. 研究了利用丝网印刷法制备碳纳米管阴极,以获取很大的发射电流。
- The field emission triodes with nanodot emitters exhibited a low gate turn-on voltage of 45 V and high emission current density of 25 mA/cm2 at 120 V. 此场效发射三极体拥有45伏特之低闸极启始电压，且在120伏特的闸极电压下，场效发射电流密度高达25毫安培/平方公分。
- More efforts should be concentrated on rectifying the economic development mode characterized by high energy consumption, high material consumption, high contamination and high emission. 应着力改变高能耗,高物耗,高污染,高排放的经济发展模式。
- Because gallium arsenide has a high emission rate (it amplifies light efficiently because its bands line up), its total photon emissions easily outpace its absorptions. 由于砷化镓发光效率很高（因为能带呈正对排列，所以可以很有效率地放大光），因此其光子发射总数很容易就可以超过其吸收总数。
- As long as the EPA follows California's lead and sets higher emission standards for all vehicles, air quality should remain the same. 只要EPA模仿加利福尼亚并对所有的车辆制定更高的排放标准，空气质量就可以维持原状。
- Key problems on energy saving of high emissivity coating at middle temperature are discussed. 本文论述高发射率涂料在中温下使用,节能的若干关键问题。
- The developing trend of the high emissive coatings will be ultra fine and ultra thin,compositely compo nential and multi-functional. 高温辐射涂料今后将向着超细超薄化、成分复合化、功能多样化的方向发展。
- Comparing w ith its application in flame furnace,high emissive coating in radiation heatin g process by electricity does better on energy saving. 理论分析和实际应用都已证明,高辐射率涂料在电辐射加热条件下的应用可取得比在火焰炉内更好的节能效果。
- The pellicle resistance heater which can work continuously and has high emissivity is primarily developed.Its temperature can be accurately controlled. 初步研制成了高发射率、可持续工作并能实现精确控温的高精度薄膜电阻加热板。
- Cordierite-transition metal oxide infrared radiation materials were prepared with A and B samples which were selected for their high emissivity. 聚合物/过渡金属氧化物纳米复合材料是近年来引人注目的一种新型功能性材料。
- Study of High Emission Current Property of CNT Cold Cathode 大电流场发射冷阴极发射性能的研究
- Two hot issues of infrared radiation materials are reviewed:one is energy saving material with high emissivity, the other is stealth material with low emissivity. 对当前红外辐射材料的两大研究热点,一是民用领域的高发射率红外节能材料,二是国防用途的低发射率红外隐身材料的研究现状作了综述。
- She skirted round the problem of the high cost. 她避而不谈巨额费用问题。
- Men and birds are fain of climbing high. 不论人还是鸟都愿意往高处攀。
- The bird sang high and clearly in the tree. 鸟儿在树上清脆地高歌。
- Goods of high quality are few and far between these days. 质地精美上乘的物品现在不多见。
- The medieval town was fortified with a high wall and a deep moat. 这座中世纪的城市周围建有城墙和护城河。
- Conversely, social effects could make cuts easier - for example, if the high emissions associated with flying stigmatise air travel among some groups, adds Hulme. 例如，如果乘坐高碳排的飞机旅行会让一部分群体感到耻辱的话，那么相反，社会影响可能会使得削减碳排更加容易。休姆补充道。
- I set a high value on his advice. 我认为他的忠告很有价值。
