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thc造句
31 Major Composite of thc SeaIant is bisphenol A epoxy resin, dicyandiamide, ureido compound and modifier etc. 32 The colorfulacus shover will protect the forwcrd part thc bi - direction from bacterias pollution. 33 According to the requirment of the technology thc equipment has been designed to obtain reasonable match. 34 By modifying the influence on frequency estimation which comes from the interface reflection of underwater acoustic channels, the method improves thc performance of estimating center frequency.