collisionless

/kəˈlɪʒənlɪs/
of, relating to, or being a plasma in which particles interact through charge rather than collision.

adjective [原级] 无碰撞的

Collisionless shocks are the important physical phenomena in the space and cosmical plasmas. 无碰撞激波是空间等离子体和宇宙等离子体中的重要物理现象。

后缀: less 【adjective】 表示缺乏或没有某种特性 - indicating the absence or lack of a particular quality 原词: collisionless 是通过后缀 【less】 构成的派生词
单词造句:
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The results show that whistler waves can be directly excited by the collisionless current sheet. 结果表明,哨声波能被无碰撞电流片直接激发。
The collisionless magnetic reconnection is studied using two dimensional full particle simulation. 采用二维全粒子模拟方法研究了无碰撞磁场重联。