Different types of sand, topography, wind and climate combine to form a tremendous variety of landscapes.

不同类型的沙、地形、风向和气候相结合，形成了各种巨大的奇异景观。

Primarily concerned with controlling the measurement of project types, topography, line measurement, deformation measurement and geographical information system measurement of results.

项目类型主要涉及控制测量、地形测量、线路测量、变形测量及地理信息系统等测量成果。

Two types of keratoconus after PKP have remarkable divergence of post-operative corneal topography(P

圆锥角膜术后两种类型角膜地形图参数差异有显著意义（P