Its mortality is a biomonitoring criterion which indicates the degree of pollution.
采用野生型秀丽小杆线虫与带有hsp16启动子的转基因虫株分别对厦门岛附近5个站位的表层水样污染程度进行了监测,并将致死率和染色率的检测结果进行比较。
The effects of UV-B radiation on the mortality and ingestion and filtering rate of adult females and males of Schmacheria inopinus by exposure to varying dose of UV-B irradiance were examined in the laboratory.
探讨UV-B辐射增强对海洋生态系统的影响,通过实验生态学的方法,研究了UV-B辐射对指状许水蚤(Schmacheria inopinus,Burckhardt)雌雄成体的致死率、摄食率和滤水率的影响。
44%(62/180),the mortality was 45.
44%(62/180),致死率为45。
Study on the lethality rate of yeast 1254 and screening for high producing chromium-riched yeast strain by ultraviolet radiation;
紫外线诱变酵母1254的致死率及高产富铬酵母菌选育研究
The mutagen amount used is 1%, when the mutafacient time is 50 minutes, this strain lethality rate is 75%.
以其作为出发株,得出了以硫酸二乙酯(DES)诱变该株的致死率曲线,诱变剂用量为1%、诱变时间为50min时,该株的致死率达到75%。
Result proves that ultrasound frequency is higher in the same time, lethality rate increases with the increase of radialization time on the same frequency, at the same time, its physiological character changes.
试验结果表明,在相同的时间内,超声波频率越高对试验菌株的致死率越高;同一频率,超声波辐射时间增加也可使试验菌株的致死率增高,同时经过诱变处理后的菌株其生理生化特性也有变化。
Based on experimental results,the response model of lethal rate was established,Y=62.
利用Design Expert软件建立了致死率的响应模型,Y=62。
The lethal rate was increasing and the n.
4%秋水仙素的不同时间处理中,致死率随处理时间延长而增高,诱变植株数递减。
The results showed that the death rate was above 99% to the larva of drosophila melanogaster under the conditions of laser power of(60 mW) and irradiation time of(1282 s,) with semiconductor laser at wavelength of.
结果表明,用波长为650 nm的半导体激光照射果蝇幼虫,在功率60 mW,照射1282 s条件下,果蝇幼虫的致死率可达到99%以上,且体重降低、羽化延续时间缩短,激光对果蝇幼虫具有较强生物学致死效应。
Relation between sterilization rate , voltage intensity and treatment time was studied .
实验中采取了芒刺-板型电极结构,测定了大肠杆菌致死率与电场电压、处理时间的关系。
The sterilization rate is 98.
在极板间距D=3cm,电压20kV,处理时间45min的条件下,大肠杆菌的致死率达到98。
The sterilization rate was 98.
在极板间距3cm,电压20kV,处理时间45min的条件下,大肠杆菌的致死率达到98。
[Methods] Data from the yearbook of Shanghai motor vehicle traffic accidents and related background material were employed to describe the incidence rate,mortality rate,injury rate and fatality rate.
[方法]应用2003～2008年上海市统计年鉴及相关背景资料描述上海市机动车道路交通事故的发生率、死亡率、伤人率、致死率及其变化趋势,并描述机动车道路交通事故的归因、地区和道路等相关特征。
This virus was both lethal and virulent.
这种病毒不但致死率高，而且毒性极强。
The Research on Lethality Rate of Ultraviolet Light for a High-biomass Yeast Strain;
一株高生物量酵母株紫外线致死率的研究
The volume and ulcerative broke rate of sarcoma and fatality of mice with S-180 sarcoma were also observed.
同时，观察了小鼠荷瘤的体积、溃破率及动物致死率。
It is said that as haemorrhagic dengue is of high mortality, if it is not treated in time, the death rate may be as high as 15-50%.
据了解，由于出血性登革热致死率高，若不及时治疗，死亡率可高达１５％至５０％。
Because of the high mortality, heart failure has been one of the most serious diseases threatening human health.
心力衰竭的致死率很高，是严重威胁人类健康的疾病之一。
Comparison of Inoculum Amount and Mortality of Monochamus alternatus after It Was Inoculated with Metarhizium anisopliae by Different Methods
不同方式接种绿僵菌后松墨天牛带菌量及致死率的比较
A highly lethal form caused by Klebsiella pneumoniae is almost always confined to hospitalized patients with low immunity.
肺炎克雷伯斯菌引起的肺炎,几乎只在免疫力低下的住院病患中发生,致死率很高。
Statistical Analysis for Comparing the Mean Over Frequency of Embryonic Deaths in Dominant Lethal Assay;
医学显性致死试验平均死胎率比较的统计分析
Probability of receptor lethality in blowout of sour gas wells
含硫气井井喷事故受体致死概率分析
Poor hygiene led to high mortality among children.
卫生条件很差，道致了儿童的死亡率很高。
Capable of causing death.
致死的，会致死的能导致死亡的
There may be an association between ambient co levels and the incidence of myocardial infarction or sudden death, or the case-fatality percentages.
环境中一氧化碳含量与心肌梗塞发病率，或猝死率、或与致死病例百分比之间也许存在某种关系。
The potentency of the toxin from Clostridium botulinum is sufficient to create 65 % fatality in humans who ingest the toxin.
肉毒杆菌产生的毒素足以导致食入者65％的死亡率。
It is the highest mortality infectious diseases of simplex cause.
它是单因素所致感染性疾病中死亡率最高的疾病。
The study also found that taking a sleeping pill every day increased the risk of death by 25 percent.
研究还发现每天服一粒安眠药会导致死亡率上升25%。
"Severe liver, kidney, and central-nervous-system damage lead to coma. Over half the victims die."
严重时伤及肝、肾和中枢神经系统导致昏迷。死亡率超过50%。
Scientists say the pollution could increase lung diseases and cause early deaths.
科学家表示，这样的污染可能提高肺病的患病率，而且会导致早死。
execution by lethal injection;
致死性注射的死刑；