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“selectivity”的英英意思
单词 selectivity 释义 selectivity|slktvt|[f. selective a. + -ity.]1. Radio. The ability of a receiver to tune separately to signals of adjacent frequencies, measured by the frequency difference between the half-power points of the pass-band of the receiv...
2026-02-06
“selectivity”的意思
单词 selectivity 释义 selectivity n[U] 1 quality of being selective 选择性. 2 the power of a radio to receive broadcasts from one station without interference from other stations （收音机排除干扰的）选择性能. 英汉双解词典包含38652条英汉词条，基本涵盖了...
2026-02-06