00000nz a2200000n 4500 001 KSH1998009046 005 20021014000000 008 980429 n azknn|abn |a a|a | 150 ▼a격자 에너지[格子--]▲ 450 ▼wr▼i영어▼alattice energy▲ 550 ▼wg▼a에너지[energy]▲ 550 ▼a결정 격자[結晶格子]▲