| 释义 |
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Jack: in practical mechanics, portable hand-operated device for raising heavy weights through short distances, exerting great pressures, or holding assembled work firmly in position. 千斤顶：在应用力学中，指携带方便、以手操作的装置，可将重物稍微抬高，能施加巨大压力，或将装配好的对象牢固地支撑在原地。 - 2
Actually, lifting weights makes short, compact muscles. - 3
Among them, traffic flow prediction especially short-term traffic flow prediction is an important factor, which decided the road weights in dynamic path planning. 其中，交通流预测尤其是短时交通流预测是动态路径规划中决定道路权重的重要因子。
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