1 . The cross sections for these fusion reactions are appreciable only for incident energies above 10 KeV .

只有當入射能量超過10千電子伏時,這些聚變反應的截面才是可觀的.

來自辭典例句

2 . A source told the News of the World : This vid is dynamite and Kev knows it.

有消息說: 錄像帶內(nèi)容勁爆,凱文不可能不知道這一點.

來自互聯(lián)網(wǎng)

3 . One signature of positron - electron annihilation is gamma rays carrying 511 thousand electron - volts ( keV ) of energy.

電子 - 正電子湮滅的一個信號就是攜帶 511keV 能量的伽瑪射線.

來自互聯(lián)網(wǎng)

4 . This stellar population has a distribution that matches the extent of the 511 keV map.

這一恒星密度分布與511keV圖的范圍相符.

來自互聯(lián)網(wǎng)

5 . I was riding Kevin's wife's bike. She took up the pillion seat behind Kev .

我駕駛的是凱文妻子的摩托車,她則坐在凱文的后座上.

來自互聯(lián)網(wǎng)