More than 300 marine Streptomyces were isolated from Jiaozhou Bay, 3 percent of which can produce natural blue pigment.是什么意思_More than 300 marine Streptomyces were isolated from Jiaozhou Bay, 3 percent of which can produce natural blue pigment.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句