Datum setting
[计] 基准线确定
🧩 词语组成解析
datum
['detəm]
n. 数据，资料;[测]基点，基线，基面;论据，作为论据的事实;[数]已知数;
🗣️ 情景例句
Where was that?
在什么地方？
There is a mole under the ground.
地下有一只鼹鼠。
I apologize for being so angry with you.
我为跟你发火向你道歉。