The First Echelon 第一梯队
first echelon 第一梯队
first echelon maintenance 第一级维修
The First Echelon Formation 第一梯队
first cut linter echelon personnel 一级维修人员
The word is echelon and the first parameter is the part of speech, followed by a List containing definitions and an optional third parameter, which can be a List of synonyms.
单词是echelon，第一个参数是词性，然后是包含定义的List，还有可选的第三个参数，它可以是同义词的List。
At present, the domestic heavy duty motor vehicle production enterprises have formed a competition form between the first echelon and the second echelon and the third echelon.
目前，国内重型汽车生产企业已经形成第一梯队、第二梯和第三梯队的竞争格局。
After our first echelon was 250 or 300 kilometers ahead, the second and third echelons still had to wipe out enemy troops left behind.
甚至我们的第一梯队已过去五六百里，第二第三梯队还要消灭被第一梯队甩在后面的敌人。
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