飞行员使用先进的导航系统确保飞机在恶劣天气下的安全航行。

Pilots use advanced systems for accurate ___navigation during bad weather.

这个网站的导航设计很直观，用户可以轻松找到所需信息。

The website's clear ___navigation help users find information easily.

海上导航需要精确的仪器和丰富的经验。

Marine ___navigation requires precise instruments and extensive experience.