“靠惯性滑行”可以翻译为“coast (along) by inertia” 或者 “glide (along) by inertia” 。其中,“coast”有“(车辆等)惯性滑行;滑行移动”的意思;“glide”意为“(轻松地)滑行,滑动” ;“inertia”指“惯性” 。
例如:The car coasted/glided by inertia for a while after the engine was turned off.(发动机熄火后,汽车靠惯性滑行了一会儿 。)