The builders have perched a light concrete dome on eight slender columns.建筑工人在8根细柱上架起轻巧的混凝土穹顶。Columns are usually intended in architecture to add grandeur and status.圆柱在建筑中通常用来增添气势和显示地位。The jet-setting couple made freque...
Continuous application of this drug may lead to sensitization.连续用此药可导致敏化作用。Results The isobutyl chitosan has no cytotoxicity, sensitization, irritation and systemic acute toxicity.结果:异丁基壳聚糖无细胞毒性 、 无致敏 、 刺激及全身毒性作用.When th...