英语语法分析

Three model typhoon tracks, westerly, northerly and turning northwestward arc selected.

选用西行、北上和西行转向三个模式台风路径。

Qaidamu basin is one of the most impotent oil and gas bearing basins in China northwestward.

柴达木盆地形成于中新生代，是我国西北地区主要的含油气盆地之一。

The upper structure layer is composed of the Cretaceous to the Quaternary, which shows a large slope dipping northwestward.

上构造层由白垩系-第四系构成，构造形态为-北西倾斜坡。