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- 半致死浓度（LD50） Half- lethal density(LD50)
- 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.
- 半致死浓度LC50 LC50
- 耐盐半致死浓度 Semi - lethal salt concentration
- 半 semi-
- 半年 half a year
- 浓度 (n) viscosity; consistency; thickness
- 电子束处理鸡冠花干种子的半致死剂量(LD50)经测定为1.2kGy左右; LD50 of the seeds irradiation by the E-beams was esti- mated at about 1.2kGy.
- 致死 deadly
- 半天 half of the day
- 浓度的 pH indicator
- 半小时 halfhour
- 半角 DBC case
- 半月 half-moon
- 致死的 lethiferous
- 上半 first half
- 半数致死量LD50 LD50
- 半场 half-court
- 人体敌敌畏中毒的血液致死浓度探讨 Prospective Study of Lethal Blood Concentraton of DDVP in Humans
- 半透明 translucent
