toxic symptom meaning in English

中毒征候
中毒症状

Sulfur dioxide ( so2 ) , a common pollutant of urban air , can severely produce toxic symptoms in both humans and animals . it can cause respiratory tract diseases such as tracheitis , asthma , emphysema , and has close relations with lung cancer
二氧化硫( sulfurdioxide ， so _ 2 )是一种常见的对人体健康危害较大的大气污染物，可引起气管炎、哮喘、肺气肿等多种呼吸道疾病，甚至与肺癌的发生有关。
The subchronic toxicity experiment studied the effects of different pyrethroid concentration ( 1 / 10 1 / 20 , 1 / 40 1 / 80 of 96hlc50 ) on the behaviour , growth , haematological biochemical indices and pathology of carp in 60 days . the results showed that pyrethroid had no effect on the body length while had obvious influence on the body weight intake of food and swiming , some carp then showed intermittence toxic symptom until death
亚慢性试验研究了鲤鱼在不同低浓度拟除虫菊酯( 96hlc _ ( 50 )的1 80 、 1 40 、 1 20 、 1 10 )下60天暴露实验中，其行为、生长、血液生理生化指标和组织病理学所发生的变化和受到的不同影响。