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Time sequence of bubble and tube shapes for (a) r*=4∕3 and (b) r*=16∕3 (w=1 μm, E=10 MPa, f=1 MHz, and pa=0.2 MPa). Note that tube ends may be truncated to fit into the frames. In addition, jet penetration denotes the moment when the water jet penetrates the opposite bubble boundary.
