The ichnofacies is the grouping of characteristic trace fossil association tending to rscirrence through a rather long interval of geologic time, and their environmental implication.
遗迹相是指一组具有特征的遗迹化石组合，在一段相当长的地质时期中不断的重视以及它们的环境意义。
The chamber pressure as a function of time is the experimentally obtained pressure-time trace, where Po is known after each Dt time interval.
会议厅的压力，作为一个时间的函数是实验得到的压力-时间追查，其中大埔，是已知后，每d吨时间间隔。
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