block and tackle造句
1 The ropes were tensioned using block and tackle.
2 A block and tackle is needed to lift that heavy machine.
3 Block and tackle: Combination of pulleys with rope or cable, commonly used to augment pulling force.
4 I finally hoisted him up with a block and tackle.
5 The fence is then strained fairly tight and is ready to load, the block and tackle being left in place.
6 Raised, lowered, or positioned equipment, tools, and materials for installation or use using hoist, handline , or block and tackle.
7 Hoisting mechanism including electric motor, brake, reduction gear, reel and block and tackle.