Research on quantity distribution of heterotrophic bacteria, Escherichia coli and fecal coliform bacteria in coastal zone of Hebei Province是什么意思_Research on quantity distribution of heterotrophic bacteria, Escherichia coli and fecal coliform bacteria in coastal zone of Hebei Province在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句