pēn yóu
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  • oil injection

    • yóu xiāng zhèng zài dà liàng pēn yóu

      油箱正在大量喷油

      The tanker was gushing oil.

    • pēn yóu yǒu xiào kǒu jìng

      喷油有效口径

      effective aperture of oil injection