alas bakteri bahasa Inggris

• bacteria bed
• biological filter
• contact bed
• contnous filter
• percolating filter

• alas:    aduh; aduhai; alack; base; bed; bottom; coaster;
• bakteri:    backteria; bacteria; bacterium; bug; germ;
• bakteri:    backteria; bacteria; bacterium; bug; germ; microbe; sulphur pearl