色欲tv国产亚洲_久久午夜夜伦鲁鲁影院_一级特黄无码A片在线观看_免费黄色性感一级片_国内破女处破苞视频hd_欧美三级少妇免费_亚洲美腿丝袜福利一区_白丝秘书被躁到高潮视频av_91麻豆精品分享的内容是很丰富的_国产原创免费av网站

首頁英語詞典quadruplexquadruplex的意思

quadruplex

英 ['kw?dr?pleks] 美[kwɑ'dr?pl?ks]
  • adj. 四重的；四倍的；四重信號的
  • n. 四路多工系統(tǒng)

英文詞源

quadruplex (adj.)
1875, in reference to telegraph systems in which four messages can be wired simultaneously, from quadru- + plex. In classical Latin, quadruplex meant "fourfold, quadruple," as a noun, "a fourfold amount."