zero datum造句

例句与造句

1. The depth of penetration from the zero datum is measured from a dial, on which a harder material gives a higher number.
2. If \ partial h / \ partial z = 0, and the aquifer base is at the zero datum, then the unconfined saturated thickness is equal to the head, i . e ., " b = h ".
3. It's difficult to find zero datum in a sentence. 用zero datum造句挺难的