| 单词 | 电弧 |
| 释义 | 〔ignitron〕A single-anode, mercury-vapor rectifier in which current passes as an arc between the anode and a mercury-pool cathode, used in power rectification.引燃管：用于调整电力的单阳极，汞气调节器，电流以电弧的形式流动于阳极和水银液体的阴极之间〔praseodymium〕A soft, silvery, malleable, ductile rare-earth element that develops a characteristic green tarnish in air. It occurs naturally with other rare earths in monazite and is used to color glass and ceramics yellow, as a core material for carbon arcs, and in metallic alloys. Atomic number 59; atomic weight 140.907; melting point 935°C; boiling point 3,127°C; specific gravity 6.8; valence 3, 4. See table at element 镨：一种银色、柔软、可延展的粘性稀土元素，在空气中能形成绿色失泽膜，在自然界中它与其它稀土元素一同存在于独居石中，用于彩色玻璃和陶器黄色颜料，是炭精电弧的核心材料，并用于金属合金。原子序数59；原子量140.907；熔点935°C；沸点3,127°C；比重6.8；化合价3,4 参见 element〔flashover〕An unintended electric arc, as between two pieces of apparatus.飞弧：如在两块器械之间产生的一道随意性的电弧〔fulminate〕from fulmen fulmin- [lightning that strikes] * see bhel- 1源自 fulmen fulmin- [发出电弧的闪电] * 参见 bhel- 1 |
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