black bn
常見(jiàn)例句
- Use PC and TLC to identifying the dyes of the Sheaffer Black Ink and the standard Parker Pure Black Ink, which composed from two dyes:Brilliant Black BN(CI.
用紙色譜法和薄層色譜法鋻別犀飛利黑墨水和標(biāo)準(zhǔn)派尅純黑墨水中的兩種染料均爲(wèi):亮黑(CI。 返回 black bn