00000nz  a2200000n  4500
001  KSH1998023842
005  20000325100852
008  980429 n azknn|abn          |a a|a    | 
150  ▼a수냉[水冷]▲
550  ▼a냉각제[冷却劑]▲
550  ▼a수냉식 원자로[水冷式原子爐]▲