00000nz a2200000n 4500 001 KSH2002007274 005 20021122000000 008 020309 n azknn|abn |a a|a | 150 ▼a오염 억제[汚染抑制]▲ 450 ▼wr▼i영어▼apollution control▲ 550 ▼a오염 물질 배출 보조금제[汚染物質排出補助金制]▲