1·Leaves and tissue of soft-bodied organisms such as jellyfish or worms may accumulate, become buried and compressed, and lose their volatile constituents.
树叶和软体动物（例如水母或蠕虫）的组织堆积起来，逐渐被掩埋、压缩，失去其挥发性成分。
2·All these diverse constituents are aggregated together to form chondritic meteorites, like Allende, that have chemical compositions much like that of the Sun.
所有这些不同的成分聚集形成像阿连德一样的球粒陨石，具有很类似于太阳的化学成分。
3·Equally perplexing constituents of Allende are the refractory inclusions: irregular white masses that tend to be larger than chondrules.
阿连德陨石中同样令人困惑的成分是那些耐高温的内部物质：往往比陨石球粒要大的不规则白色块状物。
4·The objective was to study the chemical constituents in the root bark of Paeonia suffruticosa Andr.
目的是研究芍药根皮的化学成分。
5·The objection of this study is to analyzed changes of essential oil constituents in oval kumquat and calamondin.
这项研究的目的是分析椭圆形的金橘和加利蒙地亚橘中的精油成分的变化。