Based on the important findings, the essential reason of cell lethality by radiation was discussed.

In AA model group, every kunming mice were radiated with sublethal dose ( 7Gy) of X-ray, then 1 × 106 lymphocytes of balb/ c mice were infused by intravenous injection within 4 hours.

模型组：昆明小鼠经X射线亚致死量（7Gy）全身均匀照射后，于4小时内自尾静脉输入Balb/c小鼠的胸腺淋巴结细胞1×106/只。

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The data from clinical and basic research suggested that, sublethal dose of gamma knife could produce an antiepileptic effect without causing subsequent functional impairment in target areas, but its mechanism remains unclear, which limits further optimization of treatment.

来自临床及基础研究的资料提示，亚坏死剂量的伽玛刀照射可在不损伤靶区组织功能的情况下发挥抗癫痫作用，但机理尚不明确，限制了伽玛刀治疗的进一步优化。

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The specific activity and the Fmax value of AChE were increased after firstly and then decreased with induction of sublethal dose of phoxim over 4 generations.

辛硫磷LD（10）剂量连续诱导棉铃虫4代，对AChE比活力和V（max）作用表现为先抑制后诱导增加，但变化幅度较小。

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Fishes were infected with V. anguillarum by injection of a sublethal dose and a cascade of induced response in primary phase of infection were examined.

通过腹腔注射半致死剂量的鳗弧菌，研究受感染的大菱鲆在感染初期所诱发的一系列应激反应。

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But pathological changes were not found in any parts of the body after a single sublethal dose of microwave radiation.

微波急性一次辐射未致死动物的脏器未发现明显的病理变化。

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Blood routine examination Another 36 mice were randomly divided into control group and magnetic field group with 18 mice in each group and injected intraperitoneally with 5-Fu at the sublethal dose of 150 mg$ kg body mass.

血常规检测：空白对照组、磁场干预组各18只小鼠，均以5-氟尿嘧啶亚致死剂量150mg/kg体质量腹腔注射。

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Still another change to the experimental model: a sublethal dose of E coli was administered and the animals were observed.

对实验模型还进行了另一种变化：给动物注射亚致死剂量的大肠杆菌，并进行观察。

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Dominant Lethal Effect of Male Mice Induced by Radiation of He-Ne Laser Beam

氦氖激光照射诱发雄性小鼠的显性致死效应

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In the experiment, an avian H5N1 influenza A virus was isolated from chicken tissues infected. The 50% egg lethal dose ( ELD50) titer of this AIV is 10-7.67/ 0.lml.

本实验中，从病死鸡组织病料中分离到一株H5N1亚型AIV，鸡胚半数致死量（50%egg lethal dose，ELD（50））滴度为10~（-7.67）／0.1ml。

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Promoting nurturing relationships between parents and children early in life, providing training in life skills, and reducing access to alcohol and lethal means such as firearms help prevent violence.

从小培育子女与父母的亲情关系，培养子女的生活技能，并减少获取酒精和枪支等致命手段的机会，可有助于防止暴力的发生。

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A Study on UV Induced Screening of High Actinomycin X_2 Producing Strain by Lincomycin-resistant Lethal Mutation

放线菌素X2高产菌株的抗药性致死突变标志的诱变筛选研究

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C5b-9_(( n)), as an multieffect immune factor, can insert into cell membrane making cell lysis. Recently, the new researches demonstrates that non-lethal dose MAC can deposit on many

C5b-9（（n））是CNS炎症过程中一种多效免疫因子，在补体大量活化后，可插入细胞膜导致细胞溶解死亡，而近年来新的研究发现，非致死剂量的MAC可沉积于中

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The results showed that: after dealing silkworm larvae with pesticide of non-lethal dose, the biological parameters and economic indicators of silkworm was observed, high concentrations groups were lower than others.

结果表明：用非致死剂量乐果处理家蚕幼虫，高浓度处理较低浓度处理对家蚕生物学参数、经济学指标影响大。

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With cysteamine pre-treatment, decreased yields of dominant lethals were obtained in spermatocytes, spermatids and in spermatozoa.

用半脘氨预先处理，在精母细胞，精子细胞和精虫内均可使显性致死突变值下降。

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The effect of dominant lethals induced by 150 rad~ ( 60) co γ-ray in male mice

~（60）Coγ-射线诱发雄性小家鼠的显性致死效应

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Through experiments have found that: when the concentration of heavy metals in the soil is 0.5 percentages, it fits the half lethal dose.

通过实验发现：当土壤中重金属的含量为0.5%时，最符合蚯蚓的半数致死量。

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Radish is relatively insensitive to radiation,' and the half lethal dose of 60Co γ ray was 1500-2000 gray.

萝卜有很强的抗辐射能力，半致死剂量在1500&2000gray之间；

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Objective To measure the half lethal dose ( LD_ ( 50)) of paraquat in mice.

目的测定百草枯对小鼠的半数致死量（half lethal dose，LD50）。

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To Measure the Half Lethal Dose of Paraquat in Mice

百草枯半数致死量测定

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Improvement and programming of the weighted probit method of the half lethal dose

LD（50）的加权概率单位法的改进和程序化

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