一本古书散发出来的熟悉的霉味源于纸张或其它如装订线等材料发出的数百种不同的挥发性有机化合物。
An old book's familiar musty smell is due to hundreds of different volatile organic compounds gassing out from the paper and other materials, such as the binding.
一个真空干燥通常用于分离其他潮湿的材料一挥发性液体的蒸发从粉，蛋糕，浆，或。
A vacuum dryer is typically used for separating a volatile liquid by vaporization from a powder, cake, slurry, or other moist material.
以龙眼核为研究材料，利用GC-MS分析了龙眼核乙酸乙酯萃取物的挥发性成分，共分离鉴定出了40个组分。
With longan seed as the study material, volatile constituents of longan seed soluble in ethyl acetate were analyzed with GC -MS, and 40 components were determined.
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