常見例句

雙語例句

With good light collection, about 30 % of the luminescence quanta may reach the photocathode.
在良好的光收集條件下，約30%的熒光量子可以到達光陰極。
At present, the cesium source used for manufacture of photocathode belongs to a neutral source which shows some advantages.
在光電陰極制備及對其作表面分析時，銫離子源較中性銫源有一定的優(yōu)點。
It is very difficult to measure precisely the surface temperature of a photocathode in a vacuum system during the thermal cleaning.
然而，在熱清洗過程中對處在真空系統(tǒng)中的光電陰極表面溫度進行精確測量卻是非常困難的。