sea-level
美英
- na.海(平)面;标准[平均]海面
- 网络海平面;海平面级别;海平面空气

sea-level
1.海平面the average height of the sea/ocean, used as the basis for measuring the height of all places on land
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29