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- [2] APPARATUS FOR MEASURING CHANGE IN POTATO SOIL BED PROFILE AND RELATIONSHIP OF CHANGE TO SOIL DENSITY AND AIR PERMEABILITY [J]. AMERICAN POTATO JOURNAL, 1976, 53 (09): : 311 - 317
- [9] Methods and apparatus for measuring the noise audiogram [J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1929, 1 (01): : 147 - 157
- [10] NEW TYPE OF APPARATUS FOR MEASURING PERMEABILITY OF POROUS SUBSTANCES [J]. ZEITSCHRIFT FUR ANGEWANDTE GEOLOGIE, 1977, 23 (12): : 611 - 617