3.The wood is treated with preservative to prevent decay.
这块木头用防腐剂理过以防止腐烂。
4.Make sure the panels are treated with a wood preservative.
板用木材防腐剂理过。
5.tables should be treated with preservative before the bad weather sets in.
坏天气到来之前桌子上应该涂上防腐剂。
6.food preservatives that are toxic in concentrated amounts; a dump for toxic industrial wastes.See Synonyms at poisonous
浓缩后有毒的食物防腐剂;有毒工业废料的临时堆积所参见 poisonous
7.In this paper,the methods of producing sodium diacetate have been described.It is widely used as high effective preservative in grains,dodders,foods and so on.