单词 | 射电 |
例句 | DEFINITIVE EXAMPLES 权威例句〔albedo〕The fraction of incident electromagnetic radiation reflected by a surface, especially of a celestial body.反照率:被一平面,尤指一天体反射的投射电磁辐射的微量美国传统〔conduction〕Radiators heat the air in a room by conduction.辐射电热炉靠传导作用给房间里的空气增暖。英汉大词典〔dynode〕An electrode used in certain electron tubes to provide secondary emission.中间极,二次发射电极:一种用于一定电子管作第二次发射电极美国传统〔posit〕Callahan posits that chemical elements radiate electromagnetic signals.卡拉汉假定化学元素放射电磁信号。外研社新世纪〔posit〕Callahan posits that chemical elements radiate electromagnetic signals.卡拉汉假定化学元素放射电磁信号。柯林斯高阶〔quasi-stellar object〕A quasar.类星体、类星射电源美国传统〔radio galaxy〕A galaxy emitting large amounts of radio energy.射电星系:发出大量放射能的星系美国传统〔space heater〕An appliance that warms a small area, such as one room, typically by radiant electric heat.小暖炉:用于小范围取暖的器具,如一个房间,通常是通过辐射电热美国传统 |
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