| 摘要 |
A bubble pipe, which comprises a hollow tubular member having first and second open ends, a mouthpiece closing said first end and having an orifice therein communicating with the interior of said hollow member, said second end being adapted to support a film of a bubble solution thereacross, and a film divider at the second end for dividing the film of bubble solution carried by the second end, the cross-sectional area of the opening at said second end being about sixteen times the cross-sectional area of said mouthpiece.
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