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death     
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  死亡
     Secretory Phospholipase A_2 and Ceramide-induced Programmed Cell Death and Related Signaling Pathways
     分泌型磷酯酶A_2及神经酰胺诱导的细胞程序化死亡及其相关的信号传导途径
短句来源
     Role of L-Type Calcium Channels in Delayed Neuronal Death of Hippocampus after Transient Forebrain Ischemia
     L-型钙通道在脑缺血后海马神经元迟发性死亡中的作用
短句来源
     Preliminary Study on Mechanisms of Hematoporphyrin Monomethyl Ether-Photodynamic Therapy Induced Hela Cells Death
     血卟啉单甲醚光动力治疗诱导Hela细胞死亡机制的初步研究
短句来源
     A Serial Study of Cold/Warm Ischemia Reperfusion Injury on Death Pattern and Repair Factors of Hepatocyte in Rats
     大鼠肝脏冷/热缺血再灌注损伤对肝细胞死亡方式及修复因素的系列研究
短句来源
     Screening and Identification of Proteins Interacting to Death Receptor 6
     死亡受体6相互作用蛋白质的筛选与鉴定
短句来源
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     Death of Internet" & IP V6
     “Internet之”与IP V6
短句来源
     The postpartum hemorrhagrats were (2.7±1.2) % and (2.5±0.5) %,and the fetal death & stillbirthrato were (1.2±0.4) % and (0.9±0.5) %,which changd a little (P>0.05).
     产后出血率分别为 ( 2 .7± 1.2 ) %和 ( 2 .5± 0 .5 ) % ,产率分别为( 1.2± 0 .4 ) %和 ( 0 .9± 0 .5 ) % ,差异无显著性 ( P>0 .0 5 )。
短句来源
     the rate of death and elimination decreased 1.8%~3.7%.
     淘率下降1.8%~3.7%。
短句来源
     The death pupae rates of different instars were 57 3% , 18 8% , 13 6%, 7 8% and 7 9% separately.
     蛹率分别为 5 7 3%、1 8 8%、1 3 6 %、7 8%、7 9% ;
短句来源
     When the concentration of Cm was 400 mg/L, the death rate was 1.96% at 48 h? 49.76% at 144 h;
     400mg/L的氯霉素:48h至率为1.96%、144h为49.76%;
短句来源
更多       
  死亡率
     Analysis of Infant Mortality and Causes of Infant Death of Sayibak District of Urumqi in 1982
     乌鲁木齐市沙依巴克区1982年婴儿死亡率及死因分析
短句来源
     Analysis of the Population: Birth and Death Rate in Macau
     澳门人口、出生与死亡率分析
短句来源
     STUDY OF LOGISTIC CURVE FITTING FOR PRIMARY LIVER CANCER DEATH RATE IN CHENGDU
     成都市1981~1986年原发性肝癌死亡率的logistic曲线拟合研究
短句来源
     Analysis of Infant Mortality Rate ( IMR ) and Causation of Infant Death in Yichun City 1981-1988
     宜春市1981—1988年婴儿死亡率及死因分析
短句来源
     Investigation of the Drinking Water and Cancer Death Rate in Changle County
     长乐县恶性肿瘤死亡率与饮用水源关系的调查
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  死亡的
     Research on Target and Mechanism of Death of Hepatocellular Carcinoma Cells Induced with Nano-Hydroxyapatite
     纳米羟基磷灰石诱导肝癌细胞死亡的作用靶点及机理研究
短句来源
     Study of Apoptosis and Autophagy Pathway of Cell Death Induced by Resveratrol
     白黎芦醇诱导细胞死亡的自吞噬和凋亡途径研究
短句来源
     Gene Mapping for Powdery Mildew Resistance and Related Study of Programmed Cell Death Caused by Powdery Mildew in Wheat
     小麦抗白粉病基因的分子标记及白粉菌引发的细胞程序性死亡的相关研究
短句来源
     THE FACTORS OF SHORT-TERM DEATH AFTER COBALT-60 RADIOTHERAPY OF ESOPHAGEAL CARCINOMA- ANALYSIS OF 305 CASES
     食管癌~(60)钴放疗后近期死亡的有关因素(附305例分析)
短句来源
     A Study of Perinatal Death in Shanghai, 1984
     上海市1984年围产儿死亡的探讨
短句来源
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      death
    This inhibitive effect may relate to two factors: mitotic arrest and cell death.
          
    Venoms of the ectoparasitoids often lead to arrested development, permanent paralysis and even death of hosts.
          
    For one-dimensional diffusion processes and birth-death processes, these bounds are sharp in the sense that the upper one and the lower one are only different by a constant.
          
    The increase in the level of ether extract in test diets was responsible for the direct cause of illness or death in juvenile S.
          
    Based on the fundamental processes of birth, death, dispersal and speciation, the neutral theory provided the first mechanistic explanation of species abundance distribution commonly observed in natural communities.
          
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    Pleonomus canaliculatus Falderm. is one of the most destructive soil-inhabitinginsects to wheat in Honan. It causes considerable losses to the crop in spring bycutting the underground part of the stems, causing withering and death of the plant.The life history, distribution, host plants, morphology and rearing methods of theinsect are given in this paper. The overwintering adults become active in spring. Eggs are laid in the topsoil about the plant. They hatch in 5-8 weeks and the larvae grow to maturity...

    Pleonomus canaliculatus Falderm. is one of the most destructive soil-inhabitinginsects to wheat in Honan. It causes considerable losses to the crop in spring bycutting the underground part of the stems, causing withering and death of the plant.The life history, distribution, host plants, morphology and rearing methods of theinsect are given in this paper. The overwintering adults become active in spring. Eggs are laid in the topsoil about the plant. They hatch in 5-8 weeks and the larvae grow to maturity inat least 15 months. Pupation takes place during late August up to mid-septemberand the pupal stage requires about 2 weeks. The young adults remain and overwinterin their pupal cells. Fall plowing to a depth of 6 to 9 inches soon after the harvest of summer cropswill destroy a great number of pupae and young adults by breaking up their cells inthe soil. The larvae are thus turned up and exposed to the predators. Rotation ofcrops by using sesame or legumes instead of millet preceding wheat, and summerfallow of the land are found to be helpful to lessening the infestation. Control may be effective by dusting γ-BHC (at,1.5 to 2.5 kgs of 0.5% γ-BHC permow mixed with 3 parts of dry soil or sand) into the top soil by means of a tripodhand-driller between the rows just before the activity of wireworms in spring.

    1.沟金针虫需2年以上完成一代生活史。越冬成虫2月下旬出土,3月中旬至4月中旬为活动盛期,产卵在1至2寸表土内,卵于5月初孵化,卵期为5至8星期。老熟幼虫8月下旬开始化蛹。9月中旬起羽化,蛹期约2星期。成虫羽化后即行越冬。 2.越冬幼虫2月底至3月中旬开始向表土活动(10厘米处地温8—12℃左右),3月中旬及4月全月是为害盛期(80%以上幼虫集中在1至2寸之表土内),8月至12月表土之幼虫密度极小(仅有虫1.2—6.8%),不致为害成灾。 3.沟金针虫之天敌除一种壁虱(Cheyletus sp.)和一种蜘蛛及蚂蚁外,尚有寄生菌2种,具中一种经鉴定为冬虫夏草(Cordyceps sp.)之一种。 4.小麦整地时适当深犁(5—7寸)并精耕细作能毁杀大部分蛹体及成虫,并可将幼虫翻上来供鸟类捕食(9,10月间97%老熟幼虫,在5—7寸土内化蛹及羽化,同时88%幼虫分布于1—7寸土内)。此外以芝麻与豆类为小麦前作及夏季休间结合翻耕曝晒亦能减少虫害损失。 5.沟金针虫在河南的主要为害期系在春季,所以早春於麦行间耩666毒土或毒沙以毒杀向表土上升之幼虫是值得继续研究的。

    The acute and chronic toxicities of parathion, O,O-diethyl O-p-nitrophenyl thiophosphate, in the white mice (Mm rmtseulus albus Bechstein) were investigated by oral administrations. The dosage rate was based on the weight of the mouse; and the calculated volumes of the diluted parathion emulsion in various concentrations were fed to the test animals by means of a needle of the micrometer syringe. The various dosage rates for five groups of mice were as follows:(1) A single oral dose of 20 mg. of parathion per...

    The acute and chronic toxicities of parathion, O,O-diethyl O-p-nitrophenyl thiophosphate, in the white mice (Mm rmtseulus albus Bechstein) were investigated by oral administrations. The dosage rate was based on the weight of the mouse; and the calculated volumes of the diluted parathion emulsion in various concentrations were fed to the test animals by means of a needle of the micrometer syringe. The various dosage rates for five groups of mice were as follows:(1) A single oral dose of 20 mg. of parathion per kg. of body weight;(2) A daily dose of 5 mg. of parathion per kg. of body weight;(3) A daily dose of 10 mg. of parathion per kg. of body weight;(4) The mouse recieved a dose of 1 mg. of parathion per kg. of body weight at the 1st day and thereafter the dosage was increased by 1 mg. per kg. of body weight with the increase of days;(5) The mouse recieved 2 mg. of parathion per kg. of body weight at the 1st day and the dosage was increased by 2 mg. per kg. with the increase of days.In the above various daily dosage rates for the different groups of mice, parathion was fed continuously over a period of 12 days except in cases when all the test animals under experiments were dead before that period of time. The experimental results may be summarized as follows.1. The symptoms of parathion poison in the white mice were observed at follows: inaction, slight tremor, followed by omitting, tears, diarrhea, and the intensive convulsion. Finally the mouse with its erected and stiffened tail ran about for a few seconds and died.2. Either in treatments of a single acute oral dose or of daily oral dosages of parathion in succesion, the poisoned mice showed no apparent differences in susceptibilities between males and females or among animals with various body weights.3. It was found that a single dase acute oral LD50 value within 24 hours was between 10 mg. and 20 mg. of parathion per kg. of body weight.4. The average period of time required from the last administrations to the dealh of the animals was about 2 hours in the treatment (1), (3), (4), and (5). The treatment (2) took about 7 hours. In all the treatments, the required time varied from only 16 minutes to 11 hours.5. In the treatment of daily dosage of 5 mg./kg. 6 mice died within 4 days after the beginning of the administration, 9 mice survived to the end of the 12 days, having taken a total dosage of 60 mg./kg.The treatment with a daily dosage of 10 mg./kg. showed that 11 out of the 15 tested mice died before the 3rd day. Of the remaining 4 mice, 2 died suddenly at the 7th day, while the other 2 survived to the end of the 12th day, having taken a total dosage of 120 mg./kg.In those cases, when the mice recieved a dose of 1 mg./kg. at the 1st day, and then dosage increased by 1 mg./kg. at the successive days, some of the mice (so treated) died at the 4th day and the death of the poisoned mice continued to happen till the end of the 12th day. Only 3 out of the 15 mice survived after haying taken a last dose of 12 mg./kg. and total dosage of 78 mg./kg.In those cases, when the mice recieved a dose of 2 mg./kg. at the 1st day and continuously recieved a dosage which increased by 2 mg/kg. at the successive days, all the 15 test mice died before the 8th day, after having taken a total dosage of 72 mg./kg.The results of the four above dosage treatments showed that the daily administration of parathion at sublethal dosages to the mice did not apparently have any accumulative action, while the daily dosages near the acute lethal level did cause some susceptible mice to die. This may be due to the possibility that the poisoned mice could not recover their cholineste-rase level enough to resist the inhibiting effects of the next applications of parathion.

    1.小白鼠吞食“E.605”後的中毒症状为:痉挛、呕吐、流泪、不成次地排便,最後痉挛加剧,突然间尾竖直作惊慌状,爬行数秒钟,而倒伏气绝。 2.小白鼠吞食“E.605”致死50%剂量介於10—20毫克/千克。雌雄两性或不同体重的小白鼠对“E.605”的忍受力,未见有显明的差别。 3.小白鼠吞食“E.605”後,中毒死亡距各鼠最後一次吞食药剂的时间:吞食5毫克/千克/每日剂量的,为7小时,吞食10毫克/千克/每日,1毫克/千克/每日递增,或2毫克/千克/每日递增3种剂量的,平均各约为2小时,最快的仅为16分钟,最慢的不超过11小时。 4.小白鼠连日吞食“等剂量”的“E.605”,如吞食剂量远较各该鼠的一次吞食的致死剂量为小时,未见有因连日剂量积累而致中毒死亡的趋势,但个别对药剂忍受力小的鼠只在吞食“E.605”的剂量已接近於各该鼠的一次吞食致死剂量时,也能在再一次或多次接受一定量的“E.605”,而遭致中毒死亡。这点似可以解释为鼠体内胆硷酯酶受抑制後的恢复速度赶不上继续给药的被抑制量的缘故。小白鼠每日吞食的“E.605”剂量如果是逐日递增的,则在某一日或连续几日内的剂量已经增加到接近或达到各该鼠的致死剂量时,便中...

    1.小白鼠吞食“E.605”後的中毒症状为:痉挛、呕吐、流泪、不成次地排便,最後痉挛加剧,突然间尾竖直作惊慌状,爬行数秒钟,而倒伏气绝。 2.小白鼠吞食“E.605”致死50%剂量介於10—20毫克/千克。雌雄两性或不同体重的小白鼠对“E.605”的忍受力,未见有显明的差别。 3.小白鼠吞食“E.605”後,中毒死亡距各鼠最後一次吞食药剂的时间:吞食5毫克/千克/每日剂量的,为7小时,吞食10毫克/千克/每日,1毫克/千克/每日递增,或2毫克/千克/每日递增3种剂量的,平均各约为2小时,最快的仅为16分钟,最慢的不超过11小时。 4.小白鼠连日吞食“等剂量”的“E.605”,如吞食剂量远较各该鼠的一次吞食的致死剂量为小时,未见有因连日剂量积累而致中毒死亡的趋势,但个别对药剂忍受力小的鼠只在吞食“E.605”的剂量已接近於各该鼠的一次吞食致死剂量时,也能在再一次或多次接受一定量的“E.605”,而遭致中毒死亡。这点似可以解释为鼠体内胆硷酯酶受抑制後的恢复速度赶不上继续给药的被抑制量的缘故。小白鼠每日吞食的“E.605”剂量如果是逐日递增的,则在某一日或连续几日内的剂量已经增加到接近或达到各该鼠的致死剂量时,便中毒死亡。各该鼠中毒致死前的最後一次所吞食的“E.605”剂量,起了重要的致毒作用。

    Thewoolly aphis, is one of the major insect pests of the apple in Eastern Shan-tung. Serious damage caused by the attack of the aerial form of this insect in neg-lected orchards, often caused death to the apple trees. According to observations made in Tsingtao, the woolly aphis reproduced anaverage of 8-9 generations, with a maximum of 17 generations per year. Winteris spent mainly by the 1st and the 2nd instar nymphs, hibernating in the woundsand crevices of the apple tree. Overwintering nymphs nd apterous...

    Thewoolly aphis, is one of the major insect pests of the apple in Eastern Shan-tung. Serious damage caused by the attack of the aerial form of this insect in neg-lected orchards, often caused death to the apple trees. According to observations made in Tsingtao, the woolly aphis reproduced anaverage of 8-9 generations, with a maximum of 17 generations per year. Winteris spent mainly by the 1st and the 2nd instar nymphs, hibernating in the woundsand crevices of the apple tree. Overwintering nymphs nd apterous agamic femaleswere also found at the base of the trunk just below soil level, and on suckers thathad been allowed to grow around the tree, but the damage caused by the root formof this insect is negligible. By the end of April to early May (average temperature 11.0-14.3℃) newly-born nymphy were seen to crawl to the base of the young growing shoots. Thepeak of migration being in June and the early part of July, where an average ofonly 8.2 days is needed to complete a cycle. Each female may then give forth toan average of 94.2 nymphs parthenogenetically. Two gererations of winged agamic females were recorded during the wholelife history. The summer form, though not often seen, occured from May 20 to June23, these gave birth to apterous agamic females and sexuales. Towards the latterpart of August, a brood of fall winged migrants are developed. Their number in-creased as the colonies grow, reaching an average of 23.1-46.4% of winged indivi-duals per colony by September 18 to October 18. The fall migrants gave birth onlyto wingless and mouthless true males and females. After pairing, only a singlefertilized egg was laid by the female. Due to the high mortality of these sexuales,no eggs as yet was found overwintering on the apple tree. Eggs obtained in labora- tory conditions and hundreds of adult sexuales transplanted in October to previous-ly sterlized wounds on the branches of the apple tree, also failed to hatch in thefollowing year, though further works are still being needed to ascertain this fact. Early instar nymphs were also found to infest the calyx of the fruit, thoughnone of them could live up to the adult stage. According to a preliminary test on20 infested apples stored under room temperature from September to October, nonymphs were found to be alive in the calyx after 50 days storage. Studies madeon the time of calyx infestation are in accordance with those of migration. The natural enemies of the woolly aphis are in the order of their importance:a minute chalcid parasite (Aphelinus mali Hald.), the larva of a Chrysopa sp., ladybird beetles and a syrphus maggot. These played an important part in the sup-pressing of this pest in some months of the year. Based on these facts and on the lifehistory of the woolly aphis, an effective spray program has been devised in the controlof Eriosoma. These include a resin wash solution to be diluted with 20 parts ofwater plus 0.02%γ wettable BHC or 5%-6% tar distillate, to be applied in the dor-mant stage; followed by two successive sprays of 0.02-γ-0.03%γ BHC during theearly period of migration, about May 15 and June 10. At the above concentrationand time of usage, BHC proved to have no deleterious effect on the apple.

    1.苹果绵蚜在青岛地区1年中最高繁殖代数为17代,平均8—9代。 2.绵蚜1年中繁殖率从6月中旬至7月中旬(22—25℃)为最高,当平均气温连续多日高达26℃以上时其繁殖率显著下降。生长季节一般低温对绵蚜总繁殖率影响不大。 3.夏季有翅蚜发生时期为5月下旬至6月下旬,为数较少,出现时期也很零散,可胎生无翅胎生绵蚜与雌雄性蚜。秋季有翅蚜自8月底开始发生,盛期在9月中旬至10月中旬,10月中旬以后即极少发生,其后代为雌雄性蚜。 4.有翅蚜无口吻,约于7—9日内脱皮4次即行交尾,雌蚜仅产卵1粒,未经交配者不产卵。性蚜自然死亡率很高(平均81.2%),在田间尚未发现有越冬卵。 5.棉蚜主要越冬场所均在其原寄生部位,如伤口、裂缝内与根部不定芽上。越冬虫态以Ⅰ、Ⅱ龄绵蚜为主。 6.绵蚜之迁移以Ⅰ龄若虫为主,5月下旬至7月中旬为主要迁移为害时期。 7.绵蚜可在苹果的萼洼内寄生为害。 8.除西洋苹果、山荆子、花红与海棠外,尚未发现绵蚜有其他寄主。 9.20倍松脂合剂加0.02%γ可湿性666或5%—6%蒽油乳剂,为防治越冬绵蚜的有效药剂。生长季节可用666乳剂或可湿性666防治。 10.666酸霉味对果实品质能引起不良影响,...

    1.苹果绵蚜在青岛地区1年中最高繁殖代数为17代,平均8—9代。 2.绵蚜1年中繁殖率从6月中旬至7月中旬(22—25℃)为最高,当平均气温连续多日高达26℃以上时其繁殖率显著下降。生长季节一般低温对绵蚜总繁殖率影响不大。 3.夏季有翅蚜发生时期为5月下旬至6月下旬,为数较少,出现时期也很零散,可胎生无翅胎生绵蚜与雌雄性蚜。秋季有翅蚜自8月底开始发生,盛期在9月中旬至10月中旬,10月中旬以后即极少发生,其后代为雌雄性蚜。 4.有翅蚜无口吻,约于7—9日内脱皮4次即行交尾,雌蚜仅产卵1粒,未经交配者不产卵。性蚜自然死亡率很高(平均81.2%),在田间尚未发现有越冬卵。 5.棉蚜主要越冬场所均在其原寄生部位,如伤口、裂缝内与根部不定芽上。越冬虫态以Ⅰ、Ⅱ龄绵蚜为主。 6.绵蚜之迁移以Ⅰ龄若虫为主,5月下旬至7月中旬为主要迁移为害时期。 7.绵蚜可在苹果的萼洼内寄生为害。 8.除西洋苹果、山荆子、花红与海棠外,尚未发现绵蚜有其他寄主。 9.20倍松脂合剂加0.02%γ可湿性666或5%—6%蒽油乳剂,为防治越冬绵蚜的有效药剂。生长季节可用666乳剂或可湿性666防治。 10.666酸霉味对果实品质能引起不良影响,经初步试验其施用时期最晚不应迟于采收前1个半月至2个月。

     
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