英语词汇class maintained certificate怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	class maintained certificate
释义	class maintained certificate 简明释义船级保持证书专业释义 1 地球科学船级保持证书 2 交通运输工程船级保持证书
随便看	charge configuration charge conjugation charge conjugation conservation charge conjugation invariance charge conjugation operation charge conjugation parity charge conjugation-parity charge conjugation transformation charge conservation charge conservation law charge control charge control analysis charge controlled reaction charge-controlled storage tube charge controller charge control agent charge control parameter charge control parameter charge control room charge conversion charge converter unit charge conveyer charge conveyor charge cooler charge cooling

英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。