The neutralizing efficiency of sodiumvapour for lithium ion beam has been measured.
本文叙述了锂离子束通过钠蒸汽时的中性化效率测量。
2
In order to restore the historic red colour of the Forth Bridge correctly, Alessi fitted these floodlights with sodiumvapour lamps.
为了准确到位地表达第四大桥这富有历史感的红色，这些灯具中采用的是钠灯光源。
3
Studies of HD 189733b, a hot gas giant that is larger than Jupiter, have confirmed that its atmosphere contains sodium, carbon monoxide, carbon dioxide, water vapour and methane.