tourmaline
常見例句
- Never use chemicals such as hydrofluoric acid or ammonium fluoride to clean Tourmaline because it can erode the stone.
從來不使用化學(xué)物質(zhì)如氫氟酸或氟化銨清潔電氣石，因為它可以削弱石頭。 - The main anionic finishing agents applied in textiles are tourmaline and natural ores with micro-pores and lanthanon.
紡織品中應(yīng)用的負(fù)離子整理劑主要為電氣石和加稀土元素的天然超微多孔質(zhì)礦石。 返回 tourmaline