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- 半致死浓度LC50LC50
- 半致死浓度（LC50）Semi - lethal concentration
- 甲胺磷乳剂对欧洲鳗仔鳗的半致死浓度（48h－LC50）为35.9mg/L，安全浓度（SC）为3.6mg/L。And the values of 48 h median lethal concentration ( LC 50 ) and safe concentration ( SC ) of methamidophos for European eel larvae were 35.9 mg/L and 3.6 mg/L respectively.
- 用硫酸二乙酯 (DES)进行诱变处理 ,其半致死浓度为 0 .34%。Half death concentration of diethylsulfate (DES) which treatment for mutant inducement is 0.34%25.
- 半semi-
- 半年half a year
- 研究结果显示 :巴豆、博落回和醉鱼草提取物对萝卜蚜的致死中浓度LC50 分别为 1 86.94mg/L、2 0 0 .75mg/L和 1 5 7.73mg/L。The results showed that the concentration of the extracts of Croton tiglium,Macleaya cordata and Buddleia lindleyana on the Lipaphis erysimi of LC (50)were 186.94 mg/L,200.75 mg/L and 157.73 mg/L respectively.
- 浓度(n) viscosity; consistency; thickness
- 半天half of the day
- 致死deadly
- 半小时halfhour
- 半角DBC case
- 浓度的pH indicator
- 半月half-moon
- 致死的lethiferous
- 上半first half
- 半场half-court
- 半透明translucent
- 半数致死浓度（LC50）median lethal concentration
- 半个half
