To administer digitalis in a dosage sufficient to achieve the maximum therapeutic effect without producing toxic symptoms. 服最大的量供给足够的毛地黄属以得到最大疗效且不会出现有毒症状
Plumbic etc heavy metal can be touched through feeling or breath enters system inside, can appear have a headache, memory drops, the toxic symptom such as limply, indigestion. 铅及其他重金属会通过摸触或呼吸进入体内，会出现头痛、记忆力减退、四肢无力、消化不良等中毒症状。
The acute toxic effects of Fipronil and other insecticides on Carassius auratus(L.)were studied. 本文研究了氟虫腈等杀虫剂对鲫鱼的急性毒性作用。
In 0, 0.1, 0.2, 0.4 and l. Omg Cd2+/L, except the control, the leaves of Rumex acetosa L became thin, yellow and had brown spots after the fifth day with Cd. The toxic symptoms in 1.0mg Cd2+/L were most serious. 酸模在Cd~(2+)浓度分别为0、0.
Purpose and Methods: The acute toxic and mutagenic effects of acrosin inhibitor KF-950 were evaluated in mice and Ames assay. 目的与方法 :本文研究顶体蛋白酶抑制剂KF - 950对小鼠的急性毒性作用 ,以及Ames试验观察其致突变作用。