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American Geophysical Union (AGU) - Step into the abyss...or send an ROV. The Czech Republic's Hranice Abyss is more than twice as deep as researchers thought. https://eos.org/research-spotlights/worlds-deepest-freshwater-cave-may-be-a-kilometer-deep ...
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WESTWARD, Foot-Pound/Newton-Meter, 3/4 in Drive Size, Micrometer Torque Wrench - 55JA93|55JA93 - Grainger
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Keson NRS18300 Nylon-Reinforced Steel Blade Tape Measure, Speed Rewind (Graduations: ft., in. 1/8), 300-Foot , White - Measuring Wheels - Amazon.com
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