特殊用法chemical preservative1.化学防腐剂food preservative1.食品防腐剂nontoxic food preservative1.无毒食品保藏剂oil-solvent preservatives1.油溶性防腐剂organic-solvent type preservative1.有机溶剂型防腐剂waterborne preservatives1.水溶性防腐剂wood preservative1.木材防腐剂