collision-avoidanceCOCA¹⁵⁴⁸²⁵Economist³⁴³¹⁸⁺³ 基本例句 碰撞避免¹⁰⁰ Among other things, this should make automatic collision-avoidance systems more reliable. 除了其他优点，这个系统应能提升自动防撞系统的可靠性。 ecocn One reason is that existing automatic collision-avoidance systems are too expensive for most private pilots. 其原因之一是现有的自动防撞系统对于大多数私人飞机驾驶员来说过于昂贵； ecocn