在动物急性毒性试验中，使受试动物半数死亡的毒物浓度，用 LC50表示。
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。
Methods WHO standard bioassay method was applied to calculate LC50 and synergistic coefficient.
方法采用WHO生物测试法，计算lc50、回归方程、增效系数。
Methods The standard bioassay methods recommended by WHO were used to calculate LC50 and synergistic coefficients.
方法 采用WHO生物测试法，计算LC50、回归方程、增效系数。
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