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Metallocene catalyst is a new kind of catalyst having homogeneous-site, molecule tailing capability and controlled structure. It can be used to synthesize special function polyolefine. 茂金属催化剂是一种具有均匀的活性中心， 分子裁剪性和结构可控性的新型催化剂，用它催化可制得具有特殊性能的茂金属聚烯烃。