结果表明，延长烧结时间或用湿化学法制得的粉末制备样品，其均匀性好，仅表现出体的超导电性。
The results indicated that the samples fabricated by wet -chemical method or by longer sintering time had better homogeneity and showed bulk superconductivity.
结果表明，延长烧结时间或用湿化学法制得的粉末制备样品，其均匀性好，仅表现出体的超导电性。
The results indicated that the samples fabricated by wet -chemical method or by longer sintering time had better homogeneity and showed bulk superconductivity.
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