Mechanics. A pulley or system of pulleys mounted in a case, used to increase the mechanical power of the ropes running through them; employed esp…
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| 释义 | society > occupation and work > equipment > lifting or hoisting equipment > [noun] > tackle > pulley(s) mounted in case (11) block1622 Mechanics. A pulley or system of pulleys mounted in a case, used to increase the mechanical power of the ropes running through them; employed esp… tackle-block1793 = block, n. 2. Subcategories:— types of (9) |
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