@article{oai:nipr.repo.nii.ac.jp:00001684, author = {Suzuki,Yosio and Shimbori,Kunio}, journal = {Memoirs of National Institute of Polar Research. Special issue}, month = {Dec}, note = {P(論文), Two light-weight mechanical drill systems, one capable of drilling down to 250m and the other to 60m, were developed for the use by the 25th Japanese Antarctic Research Expedition during its inland traverse. Also developed was a mechanical drill to back up 800-m thermal drilling at Mizuho Station. The design and specifications of the drills and winches are described.}, pages = {188--196}, title = {Mechanical drill systems for the 25th Japanese Antarctic Research Expedition}, volume = {34}, year = {1984} }