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1·Qum Formatiom with carbonate is mainly exploration aim stratum, the C4 member of Qum Formatiom is mainly production layer.

库姆组碳酸盐岩为主要勘探目的层，其中库姆组c 4段为主要产层。

2·A quadratic unsharp masking (QUM) operator is presented, which extracts edge and detail information from an image with equal weights.

提出了一种二次反锐化掩模算子(QUM)，用于从图像中提取等比重的边缘和细节信息。

3·The firstly discovered dinoflagellates (including 6 species in 6 genera) from the Qum Formation of the Kashan block in Iran are reported briefly in this paper.

文章简要报道了伊朗卡尚地区库姆组首次发现的沟鞭藻类，计6属6种。