The combination of heat and charge releases electrons, which accelerate through the tube and strike a positively charged electrode at the other end.
加热和充电的结合释放出电子, 电子通过真空管加速撞击到对面充满正电的电极上。
The NWS Web site features a handy on-line calculator for determining the heat index based on a combination of either temperature and relative humidity or temperature and dew point.
国家气象局(NWS)网站公布了一个方便的在线计算器便于大家基于温度和相对湿度或温度和露点的结合来计算炎热指数。
Dr Hofmann's work suggests that a combination of heat and acidity is more deadly than either alone.
霍夫曼博士的工作表明热和酸的联合起来的影响比单独任何一种都更具致命性。
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