| 释义 |
DEFINITIVE EXAMPLES 权威例句〔current density〕Physics The number of subatomic particles per unit time crossing a unit area in a designated plane perpendicular to the direction of movement of the particles.【物理学】 粒子流密度：在与粒子的移动方向垂直的指定平面上每单位时间内通过每单位面积的亚原子粒子的数量美国传统The Weather Service issues warnings to people in the path of a hurricane (= in the area in which it is moving) so they have time to prepare or get out of the way.气象服务台向飓风移动方向的人们发出警告，所以他们有时间作好准备或离开。剑桥国际 |