观察小鼠一日内给予大剂量钙纳米粒子的急性中毒及死亡情况，得出半数致死量（LD50）或最大耐受量（MTD）。
To observe the acute toxicity and death of the mice to which calcium nanoparticles were given in maximal dose and obtain the lethal dose 50(LD50) or the maximal tolerance dose (MTD).
且VOC混合物的急性毒性效应在高剂量时呈现细胞致死效应，较低剂量时呈现一种细胞转化效应。
Whereas lower dose of VOCs mixture had a transforming effect, the high dose of the mixture caused BEAS-2B cell death.
且VOC混合物的急性毒性效应在高剂量时呈现细胞致死效应，较低剂量时呈现一种细胞转化效应。
Whereas lower dose of VOCs mixture had a transforming effect, the high dose of the mixture caused BEAS-2B cell death.
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