其次，先将靛红和丙二腈缩合制备得亲偶极体后与另一分子靛红及肌氨酸进行三组分反应可以合成含有两个不同吲哚片段的双螺环化合物。
Secondly, the three components of isatin, sarcosine and dipolarophiles condensed by isatin and malononitrile were involved in forming dispiro compounds including two of different indole moieties.
现在有一个植物生理学家的团队已经研究出一种方法，这种方法就是通过用紫外线发光二极管使莴笋颜色更深更红(因此更健康)。
Now a team of plant physiologists has developed a way to make lettuce darker and redder-and therefore healthier-using ultraviolet light-emitting diodes (LEDs).
应用推荐