There were significant differences in different strains of virulence genes type in hemolytic, proteolytic activity, cell toxicity and median lethal dose of mice.

The research of serum in malignant tumours patient exertion an influence on LAK cell lethal activity

恶性肿瘤患者血清对LAK细胞杀伤活性影响的研究

Using energy criterion and fragment distribution density criterion, the lethal area of warhead is determined.

推导了在弹体坐标系下战斗部任何一处破片着地的特征参数，利用破片能量和密度准则确定了对地目标杀伤的区域形状和面积。

A method of engineering computation for lethal area of fragmentation ammunition

杀伤弹药杀伤面积的工程计算方法

The results show that different falling angle has a peak value of the lethal area and the maximum of lethal area is reduced with the decrease of falling angle.

结果表明：不同落角都有一个杀伤面积峰值，且最大杀伤面积随落角的减小而减小。

The Calculation on the Lethal Area of Blast-fragmentation Warhead LETHALITY ASSESSMENT STUDY OF REENTRY LARGE-SCALE BLAST-FRAGMENTATION WARHEAD

杀爆战斗部杀伤面积的数值计算再入式大面积杀爆战斗部威力评定方法研究

Conclusion HSV-TK/ GCV in combination with HCPT can enhance the lethal effect of suicide gene therapy against human bladder carcinoma cells and effectively induce apoptosis of the cells.

结论HSV-TK/GCV系统联合HCPT治疗能增强自杀基因系统对人膀胱癌的杀伤作用，能够良好地诱导人膀胱癌细胞的凋亡。

With flux balance analysis, batch culture of Y. lipolytica was simulated. Single gene knockouts and double gene knockouts were also simulated to predict the essential genes, non-essential genes and lethal gene pairs.

利用流平衡分析对模型实施单基因敲除和双基因敲除，成功预测了模型内的必需基因、非必需基因以及致死基因对，同时模拟了菌种的分批培养。

This work was designed to control plant fertility by cell lethal gene Barnase expressing at specific developmental stage and in specific tissue of male apparatus under the control of Cre/ loxP system.

本实验是以Cre Loxp系统调控细胞毒素基因barnase在植物雄性器官发育的特异时期在特异组织表达，从而达到控制植物育性的目的。

Genetic Analysis of Normal Temprature Lethal Gene ( ntl) in the Silkworm Bombyx mori

家蚕温度敏感型致死基因ntl的遗传分析

Expression of lethal gene mRNA on placenta villi in patients with spontaneous abortion

自然流产患者绒毛组织中致死基因mRNA的表达

Study on expression of apoptosis and lethal gene during acute rejection in limb allograft

肢体移植排斥反应中细胞凋亡及致死基因表达

DEHP, DBP and DOP can shorten 50% Lethal Time ( LT50) of drosophila, apparently making its average longevity and average maximum longevity shorter;

DEHP、DBP和DOP可使果蝇半数死亡时间提前，并明显缩短果蝇的平均寿命和平均最高寿命（P<0.01）；

However, the effect of Berberine to prolong lethal time induced by Ouabain is less effective than Sodium Phenytoin, Quinidine and Propranolol.

但黄连素延长哇巴因对豚鼠的致死时间作用不及苯英钠、奎尼丁及心得安等药物。

Fifty Percent Lethal Time of Anoxia and Protective Effect of Anoxia Preconditioning in Three Strains of Drosophila melanogaster

三品系果蝇的低氧半数致死时间和低氧预适应的保护作用

Study on Heat Lethal Time of Different Cultivars of Cucumber under High Temperature Stress

在高温逆境条件下黄瓜热致死时间与耐热相关性的研究

Characterization of expression of CD95 of splenic lymphocytes in sublethally γ irradiated mice

亚致死剂量γ射线照射后小鼠脾脏CD95阳性淋巴细胞变化规律的研究

Characterization of Programmed Cell Death of Bone Marrow Cells in Sublethally~ 60Co γ Irradiated Mice

亚致死量~（60）Coγ射线照射后小鼠骨髓造血细胞程序性死亡特性研究

Conclusion: The treatment principle of chemical combined injuries on the sea is to apply anti toxic treatment for lethal agent poisoning first and to handle firearm injuries in time.

结论：海上化学复合伤处理应改变传统的中毒复合伤救治优先处置危及生命的火器伤情的原则，而应首先进行致死性毒剂中毒的急救，同时尽快处理火器伤情。

They were close to weaponizing ricin — a lethal plant toxin.

他们快把蓖麻毒素——一种致命的植物毒素——研发为武器了。

Down the road are insect-sized drones that could be mistaken for a housefly or spider, which could slip in under a door-sill to record conversations, take photos or even inject a lethal toxin into an unsuspecting victim.

今后还会出现昆虫大小的无人机，很容易被误认为是家里的苍蝇或者蜘蛛。这种微型无人机可以溜进门槛，记录下对话内容，拍下照片，甚至向毫无防备的受害者注射毒素。