英语语法分析

The surface wind is the principal agent controlling nontidal currents 'surface waves.

表面风是控制非潮汐的海流表面浪的基本营力。

Based on the global numerical ocean models, the contributions of nontidal oceanic mass change to the seasonal variations in the low-degree Earth's gravitational field are estimated.

基于全球海洋数值模式，估计了海水质量非潮汐变化对低阶地球引力场季节性变化的贡献。