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He had no knowledge of what a fatal dose might be. 他不知道致死的剂量是多少。
METHOD:We detected median lethal dose(LD 50 )of mixture of scopolamine (SCO) and chlorpromazine(CPZ) in the different dose to mice and rats by Bliss and Brownlee sequential trial. 方法：用Blis法和Brownle序贯法分别测定不同比例东莨菪碱与氯丙嗪组合成不同比例东氯合剂后对小鼠、大鼠的半数致死量（LD50）。
Oral half lethal dose(LD 50) of thifensulfuron exceeds 5000mg/kg in rats, acute dermal toxicity(LD 50) exceeds 2000mg/kg, negative skin and mild eye irritation in rabbits, mild skin allergy in guinea pigs, with acute poisoning. 大鼠急性经口LD50 大于 5 0 0 0mg/kg ,经皮LD50 大于 2 0 0 0mg/kg。家兔皮肤刺激试验阴性 ,轻度眼刺激性和弱致敏性。
The Lethal Dose 50 test (LD50) may also be replaced. 药剂致死剂量50(LD50)试验也可以被代替。
The acute lethal dose (LD50) has been reported as 3,400 mg/kg bw. 急性致死剂量（半数致死量）已被报告为3400毫克/公斤体重。
They contain a substance called cyanogen glycoside the red apples contain more of this substance and it is pretty easy to consume a fatal dose. 苹果籽含有一种叫氰苷的物质,红苹果含有更多这样的物质并且很容易被消化成一种致命的毒剂。
In addition, massive wasp stings can also produce a lethal dose of venom in most adults. 除此之外，大量虎头峰螫到所产生的毒液也可致死。
He take a fatal dose of drug. 他服用了一剂致命的毒药。
Holding hands and watched by their son and daughter, they drank a lethal dose of barbiturates and died. 他们手牵着手，在其子女的注视下，喝下一定剂量的巴比妥酸盐药物后离开人世。
To investigate the acute toxicity of patina in rat and calculate its 50% lethal dose(LD_(50)). 探讨铜绿对大鼠的急性毒性,计算其半数致死剂量(LD_(50))。
He took a fatal dose of drug. 他服用了一剂致命的毒药。
The 50 lethal dose of rat by celiac injection is 670.04 mg/kg , and minimum lethal dose of ora is greater than 2 000 mg/kg. 该色素在小鼠腹腔注射的LD50为670 04mg/kg;口服最小致死量大于2000mg/kg.
Just short of a fatal dose. 还不足以致死。
Even up to ten strikes in a row can deliver lethal doses of venom. 甚至是连续袭击十次，将分泌出足以致命的毒液。
The virulence of both mutants, as represented by median lethal dose (LD50), was not significantly different from that of the parental strain. 因此，细胞溶解毒素可能不是主要的致死因子，也不是创伤弧菌造成细胞毒杀作用的唯一因素。
The median lethal dose(LC50)of 4kinds of heavy metals to S.henanense were decreased with the prolonging of the treating time. 4种重金属对河南华溪蟹的半致死剂量（LC50）随处理时间的延长而减小。
This review presents the advances in the study on the manner of poisoning,toxicokinetics,toxic effect,poisoning symptom,lethal dose,autopsy findings,and medicolegal inves... 本文结合文献,从中毒方式、毒代动力学、毒理作用、中毒症状、中毒致死量、尸体检查所见、法医学鉴定及鉴别诊断等方面,对铊中毒的法医毒理学研究进展进行综述。
The standard deviation of lethal dose is an important acute toxicity parameter of a chemical substance as LD50 and can be measured by the slope of the dose/lethal curve. 致死量标准差是表示化学品毒性的指标,其大小可以用剂量死亡曲线的坡度度量。
Abstract: Brain ischemic preconditioning is that transient ischemia in sublethal dose will result in tolerance to the following ischemia in lethal dose for long time. 摘要：脑缺血预处理即给予短暂亚致死量缺血可对随后的长时间致死性缺血损伤产生耐受。
But eyewitnesses said that she spoke of a decision to administer lethal doses. 但是证人们说她谈到了有个注射致命剂量的决定。