能有效地运用跳板和横马使重心达到和维持完成跳马所需要的速度，并且在第二次腾空需要的0.08秒内充分地完成复杂的腾空旋转动作。
They can use the board and side horse effectively, make center of gravity, reach and maintain speed needed in the vaulting, and complete the flight movement in 0.08 seconds.
当船舶的重心偏离中线面时，船舶会出现横倾角，该横倾角的存在将使复原力矩减小，稳性降低，对船舶不利。
The angle of list will reduce the righting moment and stability of the ship so as to affect the safety of the ship.
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