至于当年未曾发现埃克森·瓦尔迪兹号航线错误的海岸警卫队，现在也拥有了先进的卫星跟踪系统，保障海峡内外的运输安全。
The Coast Guard, which failed to watch the errant course of the Exxon Valdez, now has a sophisticated satellite tracking system for maritime traffic past the straits.
电子航线图表会通过与互联网连接的宽带卫星自动升级。
Electronic sea charts update automatically via a broadband satellite connection to the Internet.
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