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最近,SONY公司将新的盒式录音磁带投入市场。新牌号与日本其他著名产品对应的质量等级见表(1)。我们测定了SONY的HF、HF-S、
SONY recently introduced new cassette tapes to the market. New grades and other well-known Japanese products corresponding to the quality level in Table (1). We measured SONY’s HF, HF-S,