1. 前进运动：可航半圆(Navigable Semicircle):就台风之类的气旋性风暴(Cyclonic Storm)而言,风暴自转运动(Rotary Motion)与前进运动(Forward Motion)会相互抵消并且其内吹袭的风会把船舶吹离风暴路径(Path)的那一半范围,称为可航半圆(另一半范围则是危险半圆).

2. 前向运动：前台调度程序 foreground scheduler | 前向运动 forward motion | 前置放大器 preamplifier

noun

1. the act of moving forward (as toward a goal)

Synonym: progressprogressionprocessionadvanceadvancementonward motion