00000nz  a2200000n  4500
001  KSH1998030959
005  20000613171541
008  980429 n azknn|abn          |a a|a    | 
150  ▼a반중성자[反中性子]▲
450  ▼wr▼i영어▼aantineutron▲
550  ▼wg▼a반물질[反物質]▲
550  ▼wg▼a반입자[反粒子]▲
550  ▼wg▼a핵자[核子]▲
550  ▼a중성자[中性子]▲