地形和地表结构的英文：
topographical and surface structures
a. 地质的;地学的
- Topographic Command Satellite
地貌俯瞰卫星 - soundness of the rock surface must be included in the topographic study.
岩石表面的坚固性，必须包括在地形研究之内。 - soundness of the rock surface must be included in the topographic study
岩石表面的坚固性，必须包括在地形研究之内。
n. 表面；表层；面；顶面；操作台
v. 升到水面；露面；醒来；铺设
- impress a mark on [ upon ] a surface=impress a surface with a mark
在表面上打记号 - He finally surfaced at midday.
他终于在中午时醒过来了。 - The towers are surfaced with steel plates.
在塔面上加了一层钢板。
n. 结构；构造；建筑物
v. 构造；组织
- Involved or intricate, as in structure; complicated.
复杂的在结构中牵扯较多的或错综复杂的；复杂的 - equiaxed grain structure
等轴结晶构造 - The bridge is a frail wooden structure.
这座桥的木质结构，很不结实。