查询词典 toxicity

The results showed: for the toxicity of two kinds of pollutants, the Cd(superscript 2+) is more poisonous that the Pd(superscript 2+). For the sensitivity to the pollutants, the P. caudatum, C cathayensi and D. japonica increase evidently in turn. The statistical analyses indicated that the single and combined toxicity effects both increase with the exposed time extended, especially for the combined toxicity (P.05), showing a marked time-effect relation. As for the single effect, ii increase prominently with Pb(superscript 2+) and Cd(superscript 2+) concentrations (P.05); But in the case of binary effect, the results showed obviously a time-effect (P.01) as well as a concentraction-effect relations.

结果表明：在同等条件下，Cd(上标 2+)对三者的致毒效应都明显强于Pb(上标 2+)；3种动物中，草履虫最敏感，而圆田螺耐受能力最强；随单一毒物浓度的增大以及暴露时间的延长，两者的致毒效应都显著增大，表现出明显的浓度－效应和时间－效应关系；二者复合作用时，对3种动物的致毒效应主要表现为与二组分的浓度比例有关。

Toxicity and repellent activity of several plant-based compounds on Blattella germanica were studied, results showed that rotenone, toosendanin and azadirachtin had stomach toxic effect on Blattella germanica, rotenone showed high stomach toxicity and all insects died after 8 hours, matrine also has deformative effect on Blattella germanica , matrine and toosendanin can affect oviposition of Blattella germanica; repellent activity of these botanicals was further studied, results showed that bering hydrochloridum, azadirachtin and sparteinehave had repellent activity against Blattella germanica, observation also showed that rotenone and bering hydrochloridum had high contact toxicity against Blattella germanica, the time of all insects knocked down were 8 and 48 hours.

选取了7种植物源化合物，测定了它们对德国小蠊的毒性和驱避性，结果表明，鱼藤酮、川楝素和印楝素对德国小蠊具有不同程度的胃毒作用，其中鱼藤酮乙酸乙酯溶液作用较强，8小时死亡率已达100％，川楝素和印楝素对德国小蠊也表现出一定的毒杀作用，观察还发现印楝素和苦参碱对德国小蠊的发育有致畸作用，苦参碱和川楝素影响其卵鞘形成；进一步对这几种化合物的驱避性进行研究，结果表明盐酸黄连素、鱼藤酮乳油和印楝素乳油对德国小蠊有不同程度的驱避作用，其驱避率分别为96.7％、51.3％和50.1％，另外观察到鱼藤酮乙酸乙酯溶液和盐酸黄连素对德国小蠊具有较强的触杀活性，供试虫全部被击倒的时间分别为8小时和48小时。

The toxicity of spent potliner is discussed in this paper according to the research on main constitutes,microstructure,tiny section components,ash content and hydrating reactivity of SPL. The result indicates that the toxicity of SPL mostly rests with its leaching toxicity,contaminates in SPL are mainly dissolving fluorides and cyanides,these contaminates mostly come from electrolyze which infiltrate into the potliner and cause erosion,contents of dissolving F— and CN— in SPL are far more than the permitted discharge in national standard. SPL, which seriously does harm to eco-environment is classified as hazardous solid waste and should be detoxified as soon as possible.

本文从废槽内衬的物相组成、微观形貌、微区成分、灰分、水化反应性五方面研究了废槽内衬的危害性，结果表明，废槽内衬的危害性主要在于其浸出毒性，毒害物质主要是可溶氟化物和氰化物，毒害物质主要来自于电解质对内衬的渗透、侵蚀，废槽内衬中可溶F—和CN—的浓度远远高于国家标准规定的允许排放量，因此废槽内衬被认定为固体危险废弃物，严重危害生态环境，必须进行无害化处理。

The bio-toxicity of the dinoflagellate Alexandrium minutum on black seabream was studied by observing the acute toxicity and subacute toxicity of A. minutum on the S. macrocephalus embryo and larvae. The presence of A.

通过微小亚历山大藻对黑鲷胚胎及仔鱼的急性和亚急性毒性的实验，研究了微小亚历山大藻其藻细胞液和细胞破碎液对黑鲷幼体的生物毒性效应。

The bio-toxicity effect of Alexandrium minitum cell solution and breakup solution on sparus macrocephalus was studied by the acute toxicity and subacute toxicity of Alexandrium minitum on the sparus macrocephalus embryo and larvae.

通过微小亚历山大藻对黑鲷胚胎及仔鱼的急性和亚急性毒性的实验，研究了微小亚历山大藻其藻细胞液和细胞破碎液对黑鲷幼体的生物毒性效应。

The aim of this study was to investigate the ameliorative effect of ethanol extracts from Polypodium coronans on osteoporosis in ovariectomized rats and to evaluate the safety by acute toxicity, subchronic toxicity (90 days), reproductions toxicity and genotoxicity.

本研究目的主要是在探讨申姜酒精粗萃物对去卵巢大鼠诱发骨质疏松症之改善作用，并进一步利用急毒性试验、长期餵食毒性性验、生殖毒性试验和初步基因毒性试验来评估 PCE 对动物体的安全性。

It is necessary to carry out a thorough study on pest control technology with DMDS, with an expectation of obtaining a new fumigant of methyl bromide alternative.2. Investigation of the toxicity of fumigation on adult and mixed stages of the three most tolerant insect species -- Sitophilus oryzae, Rhyzopertha dominica and Tribolium castaneum -- under a range of EtF、DMS and DMDS doses in a Flow-through Fumigation System shows that the FTFS procedure offers a constant concentration of fumigant with low CO2 concentrations and ensures that the fumigant toxicity is effectively not compromised by CO2. In comparison with chamber fumigation method, the toxicity data of EtF、DMS and DMDS obtained from this experiment is more accurate by using FTFS.

主要研究结果如下：1、甲酸乙酯和二甲基二硫对仓储害虫具有良好的控制作用，应加快甲酸乙酯替代溴甲烷防治仓储害虫开发应用，同时，二甲基二硫是很有潜力的仓储害虫防治熏蒸剂，要深入进行二甲基二硫控制有害生物的技术研究，以期获得新的溴甲烷替代熏蒸剂。2、利用循环熏蒸系统测定了甲酸乙酯、二甲基二硫和甲硫醚对米象Sitophilus oryzaeL。

OHR has no toxic effect after acute toxicity test,subacute toxicity test and descendent toxicity test,it is in line with"eatables safety toxicology appreciation procedure and methods", furthermore,it could boost the level of little mice'blood urea and lactic acid,this suggest that OHR has effect in alleviating physical fatigue.

并且能提高小鼠清除血乳酸和尿素能力，提示沙棘油有缓解体力疲劳作用。

The toxicity to the liver were found in 27.8% and skin rashes appeared also in 27.8% of the patients. Eleven point one percent of the patients had different degrees of alopecia and toxicity of oculi, while the toxicity to the heart was only 2.78%.

结果27.8%的出现肝损害，2.78%的患者出现心脏毒性，11.1%的患者出现眼毒性，27.8%的患者出现皮肤过敏，69.4%的患者出现消化道反应，11.1%的患者有不同程度的脱发，36例患者均无肾功损害。

Eleven point one percent of the patients had different degrees of alopecia and toxicity of oculi, while the toxicity to the heart was only 2.78%. No toxicity to kindey appeared in all the patients involved.

结果27.8%的出现肝损害，2.78%的患者出现心脏毒性，11.1%的患者出现眼毒性，27.8%的患者出现皮肤过敏，69.4%的患者出现消化道反应，11.1%的患者有不同程度的脱发，36例患者均无肾功损害。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。