@article{oai:shizuoka.repo.nii.ac.jp:00013741, author = {Matsumoto, Yuta and Mizushima, Yuki and Sanada, Toshiyuki}, issue = {1}, journal = {Micromachines}, month = {Jan}, note = {application/pdf}, title = {Removing Gas from a Closed-End Small Hole by Irradiating Acoustic Waves with Two Frequencies}, volume = {13}, year = {2022} }