It was found that the relative content of protoporphyrin (PPK ) and carotenoid in blood varied with the developing of the malignant tumor .是什么意思_It was found that the relative content of protoporphyrin (PPK ) and carotenoid in blood varied with the developing of the malignant tumor .在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句