Early that morning, 350 Japanese torpedo planes, high - level bombers and zero fighters launched an all - out attack on the u. s. Pacific fleet at Pearl Harbor.

当天早上，350架日本水雷飞机高水平轰炸机和零位战斗机突袭驻扎在珍珠港上的美国太平洋舰队。

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The torpedo-shaped instrument gathers data about the difference between the level of the seawater beneath the ice and the surface of the ice itself.

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