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LC50的意思
1、【医】【=median lethal concentration】半数致死浓度
LC50的双语例句
1、LC50 was 717.13 times liquid in fumigation test.
熏蒸试验LC50为717.13倍液。
2、LC50 of Beijing population and Yunnan population were 15.7, 22.3 times that of susceptible population.
北京种群和云南种群LC50分别是敏感品系的15郾7、22郾3倍。
3、The poison experiments to these insects ( LC50) had been carried out.
另外还进行了实库杀虫实验和动物毒理试验。
4、Results The LC50 of the prepared gaseous mixture was 26.84 g/ m3 for Kunming mice.
结果混合物小鼠LC50为26.84g/m3。
5、With the prolonging of exposed time, LC50 of the extracts were getting lower and lower, but changing ranges were different.
各提取液的半致死浓度（LC50）随着藤壶无节幼体在各提取液中的暴露时间的延长越来越低，但下降幅度存在一定差异性。
6、Lethal concentration ( LC50) The water in the lake is comparatively cold and the lake remains frozen half of the time each year.
半致死浓度（LC50）池水温度较低，一年中有半年冰封期。
7、Methomyl has a maximum LC50 at 30 ℃, which is 2.30 times than 15 ℃. Methomyl is showed to be a negative temperature coefficient insecticide.
灭多威在30℃有最大LC50，是15℃的2.30倍，表现为负温度系数药剂。
8、The 24 h LC50 value of parts of pesticides was close to the 48 h and 96 h LC50, and could substitute for them and shortened the detecting time.
部分被检测农药的24hLC50与48h和96h结果相近，可以用来代替48h和96h的毒性测试结果，缩短了毒性测试时间。
9、The acute toxicity of the wastewater to fishes could decrease gradually during the process of biodegradation. The 24~ 96h LC50 to fishes was raised gradually with the degradation time.
此类废水在降解过程中对鱼类的急性毒性也逐渐下降，对受试鱼类24~96h的LC50值随着降解时间的推移而逐渐增大。
10、In the same condition in laboratory, LD50 or LC50 of 3rd instar larva of susceptible strain and Lambda-cyhalothrin resistant strain of beet armyworm were determined.
研究结果如下：1、在室内相同条件下，分别用点滴法和浸叶法测定甜菜夜蛾抗氯氟氰菊酯品系和敏感品系3龄幼虫LD50（ug/头）或LC50值（mg/L）。
11、To determine influence on uptake toxicity of chemical to Artemia, A bioassay using Anemia has determinated the 24h, 48h LC50 for several heavy metals and compounds in filtered sea water.
用卤虫（Artemia）进行的活体检定已经得出了在过滤海水中几种重金属及其混合物24小时及48小时的半死致浓度（LC50）。
12、In the LC50 bioassay on Helicoverpa armigera of high and low volume flask culture, the LC50 of VHb expression strain reduced 36.6% and 10.0%, respectively. 3.
高、低两种装液量摇瓶发酵中，VHb表达菌株与对照相比，其对棉铃虫（Helicoverpa armigera）幼虫的LC50值分别下降了36.6%和10.0%。
13、In this article, authors introduce application of LC15~ LC50 structural lightweight aggregate concrete prepared with clay ceramsite and whose density degree is 1 700~ 1 800 in 3 building projects in Kunming city.
介绍了采用粘土陶粒配制的密度1700~1800级的LC15~LC50结构轻骨料混凝土在昆明3个房建工程中的应用。
14、LC50 of contact poison was 771mg/ ml. The extracts of Xanthium sibiricum showed antifeeding action to the larves of Mythimna separata.
触杀毒力的测定结果表明，苍耳提取物对粘虫的LC50为771mg/ml。
15、In the test, Brocarded Carp was chosen as test animal and was exposed to different doses of the three nitrobenzene compounds, and 96 h LC50 was calculated according to lethal rates of the fish.
以锦鲤鱼（Brocarded Carp）为试验生物，将其暴露于3种化合物不同浓度的试液中，通过鱼类的死亡率求出96h半数致死浓度（LC50）。
16、Their respective value of LC50 was 0. 19,0. 58,0. 24 and 0. 82ng/ g. They can be used to determine lower limit of the four kinds of herbicides residues in soil.
苄嘧磺隆y＝1.937－0.199x。其LC50值分别为0.19、0.58、0.24、0.82ng／g，可作为检测其残留量的下限。
17、Cyhalothrin was the most toxic, with an LC50 of 0.6786 mg/ kg, indicating a toxicity more than 140 times that of acephate. Cyhalothrin could be recommended for use in crop production.
氯氟氰菊酯的毒力最高，LC50为0.6786mg/kg，比乙酰甲胺磷高140倍，在生产上可推荐使用。
18、Wistar rats were used to determine the LC50 of p-dichlorobenzene by acute aspiration intake ( 2 h), subacute toxicity test and genotoxicity test had been done through inspiration ( exposed for 14 d and 28 d).
采用Wistar大鼠进行急性经呼吸道半数致死浓度（LC50）试验（急性吸入染毒2h），并进行了亚急性吸入毒性试验和遗传毒性试验（14、28d）。
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