Treatment duration

• 处理时间

Treatment duration的用法和样例：

例句

1. Cell viability decreased with raised concentrations and prolonged treatment of BOD.
   随着药物浓度的增加和处理时间的延长，细胞存活率明显下降。
2. It can form a layer of even crystal nucleus on the surface of metal.So can form membrane phosphide fast, and reduce treatment time.
   可在金属表面形成结晶均匀的晶核，使金属表面活性均一化，加快磷化膜的形成速度，缩短处理时间。