Bydd eich adborth yn ein helpu i wella'r wefan hon.
Gwerthuso'r Dudalen (3. Query on reliability of volume estimates (If you got your calculations out by 1%, we're talking by your analogy 2000 metric tons of additional material). [SH])
3. Query on reliability of volume estimates (If you got your calculations out by 1%, we're talking by your analogy 2000 metric tons of additional material). [SH]