Acid-volatile sulfide in river sedimentsample was measured by reaction headspace .
采用顶空色谱测定了河流底泥中的可酸挥发硫化物。
2
Much of the water in a sample of water-saturated sediment or rock will drain from it if the sample is put in a suitable dry place.
如果把水饱和的沉积物或岩石样品放在合适的干燥的地方，样品中的大部分水将从中流出。
3
The sample consisted of pebbles of hardened sediment that had once been soft, deep-sea mud, as well as granules of gypsum and fragments of volcanic rock.