四: four支点: fulcrum; pivot point的: 4次方是 The fourth power of 2 i ...起跑: start of a race四个支点: four point contact四个支点离开地面: break the four contacts with the track三个支点接触岩面: three-point contact; three-point contract双支点的: double-beat无支点的: holdless支点的阶数: order of branch points支点的位置: position of the fulcrum对支点的力矩: moment about point of support; momentaboutpointofsupport中间支点的开合桥: pivot bridge起跑: [体育] start of a race 集体起跑 mass start; 梯形起跑 staggered start; 站立起跑 standing start; 在跑道上练起跑 practice starts on a running track; 赛跑选手们在起跑点排好队。 the runners lined up at the start.; 起跑速度 runaway speed; 起跑线 starting line (for a race); scratch line (for a relay race); starting mark; balkline; 起跑信号 starting signal; starting mark可调整支点的活动装置: adjustable fulcrum支点: [物理学] fulcrum; pivot point四个: shiko; tetrad; the four horsemen枢轴窝 桥底座上配合悬轴支点的部分。: pivot cup用背和脚作支点的攀登技术: back-and-foot technique用背和膝盖作支点的攀登技术: back-and-knee technique运动员自己调整支点的活动装置: movable fulcrums easily adjustable by the diver点的: punctual起跑, 开始: get off the mark起跑门: gate起跑器: starting block
