1. English Introduction: The mouse bid controls the left key saltation. 中文介绍：欢迎您玩“宇航员”这个小游戏，鼠标控制左键跳跃。
2. Grains moving in saltation receive most of their forward momentum directly from the pressure of the wind. 在跳跃运动中的颗粒直接接受来自风压力的大部分向前的动量。
3. When a particle is dislodged from the surface it moves downstream by suspension, surface creep, or saltation . 颗粒脱离表面后，以悬浮，爬行或跳跃形式向下游运移。
英英解释
n.
1. (geology) the leaping movement of sand or soil particles as they are transported in a fluid medium o
2. a mutation that drastically changes the phenotype of an organism or species
3. an abrupt transition
4. taking a series of rhythmical steps (and movements) in time to music
5. a light, self-propelled movement upwards or forwards
