英语语法分析

The Indigotin dye wastewater was treated by PAC as a flocculant, the optimum conditions were determined by orthogonal experiment.

本实验使用PAC作为絮凝剂，对染纱厂牛仔布染织过程中所产生的靛蓝染料废水进行了相应的处理。

Although the chemical formulae of indirubin and indigotin are the same but the structures are different, and indigotin does not possess the anti cancer characteristics.

虽然靛玉红与靛蓝的化学方程序一样但其构造式不同。靛蓝没有抗癌之作用。