poisonous substance

基本解释

Nitrobenzenes compound is the high poisonous substance which is difficult to be biodegraded and can inhibit and poison biochemical reaction.
摘要硝基苯类化合物是高毒性物质，难以生物降解且对生化反应有抑制和毒害作用。
Ethyl alcohol to which a poisonous substance, such as acetone or methanol, has been added to make it unfit for consumption.
有毒乙醇，变性酒精：加入了有毒物质，例如丙醇或甲醇，这种乙醇无法再使用。
Environmental-pollution-free vegetables are those whose content of harmful & poisonous substance is within the limits permitted by law, regulations & mandatory provisions.
无公害蔬菜是指蔬菜中有害有毒物质含量在国家法律法规和强制性标准规定的允许范围内的蔬菜。

It is genetically engineered to produce a particular strain of Bt, a substance that is poisonous to some insects.
FORBES: Magazine Article