Different blending retio of IIR/CIIR, the species and dosage of black carbon, and the species and dosage of softening agents were investigated.是什么意思_Different blending retio of IIR/CIIR, the species and dosage of black carbon, and the species and dosage of softening agents were investigated.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句