基本解释[土木建筑工程]化学净化厂英汉例句双语例句In this paper, the methods of pectin extraction and purification from plant tissues, including chemical and biological methods, are introduced.本文综述了从植物中提取果胶的各种方法，包括化学提取法和生物提取法。chemical purification plant更多例句专业释义土木建筑工程化学净化厂