基本解释[交通运输工程]单阶底快艇英汉例句双语例句For its first aircraft Beriev chose a scheme of the single-cantilever monoplane with two-step boat, which had a large cross-deadrise.别里耶夫为它的这个首个作品选择了悬臂式上单翼和双阶船身的结构，后者具有较大的横截面。single-step boat更多例句词组短语短语single -step flying-boat 单断级水上飞艇single-step boat更多词组专业释义交通运输工程单阶底快艇