A hissing or bubbling sound.

嘶嘶声的、冒气泡的。

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Most of the fishes make sound by moving their muscles and bubbling, while mankind make sound by the vibration of vocal cords, a big differences between them.

大多数鱼类都依靠运动肌肉，吐出气泡来发出声音，这与人类依靠声带振动发出声音有很大区别。

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Influence of compressive ratio and density on sound absorbing property of foamed aluminum made by bubbling method has been studied and compared with that of Japanese sample.

研究了压缩率和密度对发泡法制备的泡沫铝样品吸声性能的影响，与报道的日本用发泡法制备的泡沫铝样品的研究结果进行了比较。

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The male displays to attract a female mate by strutting with his tails spread and head held low, while making a rhythmic bubbling call that is interspersed with a sound like a sneeze.

BBC: Survey shows black grouse increase at Cumbrian reserve