硝基芬是一种发色性头孢菌素底物。
Nitrocefin is a chromogenic cephalosporin substrate. which changes color from yellow to red upon beta-lactamase mediated hydrolysis.
与其他发色的女性相比,金发女性属于高智商人群的可能性略高,而属于低智商人群的可能性也略低。
Blonde women were slightly more likely to be in the highest IQ category than those with other hair colours, and slightly less likely to be in the lowest IQ category.
本文根据稀土元素的原子结构特点,探讨其在陶瓷颜料中的成色机理。并指出研究稀土陶瓷颜料组成结构和发色机理的重要性。
The colouring mechanism of re in ceramic pigments was discussed on the basis of their atomic structures. The importance of studying the composition and chromatic mechanism was showed.
过氧化氢在没有大量减少纸浆产量情况下,具有消除发色基团的良好选择性,所以它在高白度机械浆的生产中是主要的漂白化学品。
Hydrogen peroxide decreases the pulp yield slightly and has the good selectivity to eliminate the chromophores. So it's an important bleaching agent in the high-brightness Mechanical pulp production.
过氧化氢在没有大量减少纸浆产量情况下,具有消除发色基团的良好选择性,所以它在高白度机械浆的生产中是主要的漂白化学品。
Hydrogen peroxide decreases the pulp yield slightly and has the good selectivity to eliminate the chromophores. So it's an important bleaching agent in the high-brightness Mechanical pulp production.
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