稀释的

The best way to get stains off collars is to use liquid detergent at full strength.

去除领子上的污点最好的办法未稀释的液体洗洁净。

The method for determine sewage's chroma is method of dilution multiple.It's easy to bring in error when using eyes to determine the diluted sample is whether achromatism or not.

污水色度的测定一般采稀释倍数法,该方法在人眼判定稀释后的水样否接近无色时容易引起误差。