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单词 blowhole
释义 blowhole
\ˈ ̷ ̷ˌ ̷ ̷\ noun
(-s)
1. : a hole in a metal ingot or casting caused by a bubble of gas captured in the solidifying metal and constituting a flaw or defect
2. : a nostril in the top of the head of a whale or other cetacean, there being two in the whalebone whales and only one in the toothed whales and related forms
3. : a hole or fissure in rocks along a shore through which incoming waves force air to rush upward or water to spout intermittently
4. : a hole in the ice to which aquatic mammals (as whales or seals) come to breathe
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更新时间:2024/12/25 0:01:01