求翻译：新华网温哥华７月１０日电（记者黄晓南）加拿大国防部１０日发表声明说，加拿大海军“温哥华”号护卫舰当天下午离开不列颠哥伦比亚省埃斯奎莫尔特加拿大海军太平洋舰队基地，启程前往地中海利比亚的海面执行任务。是什么意思？

Xinhuanet,, July 10 (reporter Huang Xiaonan)-Canada Defense Department 10th issued a statement saying, Canada Navy "Vancouver" frigate left that afternoon, British Columbia aisikui Mohr-Canada Pacific fleet naval base, departed for Eastern Mediterranean Libya sea mission.