| 释义 |
DEFINITIVE EXAMPLES 权威例句〔line of force〕A theoretical line in a field of force, such that a tangent at any point gives the direction of the field at that point.力线：力场上理论想象线，任一点的切线指向那一点的力场方向美国传统〔orbit〕The path of a body in a field of force surrounding another body; for example, the movement of an atomic electron in relation to a nucleus.力场轨道：一物体在力场中环绕另一物体运行路径，例如电子在原子核周围的运动美国传统 |