请输入您要查询的词汇:
词汇
echo attenuation
释义
echo attenuation
回波衰减
发送端发送的传输功率与反回到该端的回波功率之比。表示单位为分贝。
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preterist
preterit
preterite
preterition
preterminal
pretermission
pretermit
preternatural
preternaturally
pretest
pretext
pretonic
pretor
Pretoria
pretorian
pretrial
prettification
prettify
prettily
prettiness
pretty
Pretty Good Privacy
prettyish
pretty penny
pretty-pretty
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更新时间:2026/10/19 9:17:11