### Chinese: 显色反应和细菌残留实验证明：通过这种方法洗手的效果，和普通的洗手方法是一样的。
### English: Color reaction and bacterial residue experiments prove that the effect of washing hands by this method is the same as that of ordinary hand washing methods.
### Errors: There is no error in the English translation.

### Improved English: Chromogenic reaction and germ residue experiment results prove that the effect of hand washing this way is the same as that of the ordinary method.
