Evaporation residues from distilled water (left) and hard water (right). Distilled water has had all its ions removed. Hard water contains dissolved mineral salts, usually magnesium and calcium carbonates and sulphates. These are left behind as white crystals when the water evaporates.
px | px | dpi | = | cm | x | cm | = | MB |
Details
Creative#:
TOP10163965
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
Same folder images: