1. 跃移：(2)跃移 跃移(saltation)是床底泥沙呈跳跃式向前运动. 流水中的砂粒上下部产生压力差,上升力相对增加,泥沙颗粒跃移,被水流挟带. 泥沙颗粒离开床底后,颗粒上下部的水流流速相等,压力差消失,泥沙颗粒又沉降到床底. 如此反复进行,
2. 突变：许多特性在一个复杂结构的关键点出现,这叫做突变(saltation),但整个结构子单位的变异和选择却不能用来解释这一原因. 超个体有时是揭开完全社会性(eusociality)等神秘现象的唯一途径.
3. 跳跃：saltant 突变型 | saltation 跳跃 | saltatory 跳跃式
4. 跃移[运动]：repetition distance 重演距离 | saltation 跃移[运动] | saltation load 跃移质
noun
1. a light, self-propelled movement upwards or forwards
Synonym: leap leaping spring bound bounce
2. taking a series of rhythmical steps (and movements) in time to music
Synonym: dancing dance terpsichore
3. an abrupt transition
e.g. a successful leap from college to the major leagues
4. (genetics) a mutation that drastically changes the phenotype of an organism or species
5. (geology) the leaping movement of sand or soil particles as they are transported in a fluid medium over an uneven surface