Well, you'll be happy to hear that in grid section 14-28, the particles were predominantly coarse...but in 29, they're much finer...And they should be ideal for chem analysis.

你会很高兴知道坐标方格 14-28 区里颗粒大部分都比较粗糙，但 29 区的就精细多了，用它们做化学分析应该很理想。