Terbium oxide is a brown, clean powder without any significant mechanical impurities.money is limited for me.so supply is limited .thank you.是什么意思_Terbium oxide is a brown, clean powder without any significant mechanical impurities.money is limited for me.so supply is limited .thank you.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句