研究油页岩中化石的采集,修理技术和在常温下长期保存的方法,探索用自来水,蒸馏水,有关化学试剂处理及变速冷冻脱水增温烘干后的油页岩保存效果,改进传统的费工,费时,费钱的修理与保存方式.
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数据更新时间:2023-05-31
A Fast Algorithm for Computing Dominance Classes
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