"镭"相关例句(62)
17.Radium in the pure salt form is a substance the manufacture of which has now been industrialized;
18.Researches in the Institute of Radium of National Academy of Peiping
19.Our products can be widely used in all kinds of industries, such as laser welding, cutting, marking, laser cosmetology, printing &photo type setting, high-speed photography, seal making, leather production, decoration, and crafts production etc.


