「高速數字用戶迴路」(HDSL)和「對稱數字用戶迴路」(SDSL)的資料流是對稱的,也就是說上行和下行的速率相同。
"In HDSL (High Bit-rate DSL) and SDSL (Symmetric DSL) the data stream is symmetric; that is, the upstream and downstream rates are the same."
![“sludge disposal”寫句子，用sludge disposal造句]( "“sludge disposal”寫句子，用sludge disposal造句")
“sludge disposal”寫句子，用sludge disposal造句![“worldly possessions”寫句子，用worldly possessions造句]( "“worldly possessions”寫句子，用worldly possessions造句")
“worldly possessions”寫句子，用worldly possessions造句![“suspended solids”寫句子，用suspended solids造句]( "“suspended solids”寫句子，用suspended solids造句")
“suspended solids”寫句子，用suspended solids造句![“disposal system”寫句子，用disposal system造句]( "“disposal system”寫句子，用disposal system造句")
“disposal system”寫句子，用disposal system造句![“thrills and spills”寫句子，用thrills and spills造句]( "“thrills and spills”寫句子，用thrills and spills造句")
“thrills and spills”寫句子，用thrills and spills造句![“polished glass”寫句子，用polished glass造句]( "“polished glass”寫句子，用polished glass造句")
“polished glass”寫句子，用polished glass造句![“distress call”寫句子，用distress call造句]( "“distress call”寫句子，用distress call造句")
“distress call”寫句子，用distress call造句![“stressed syllable”寫句子，用stressed syllable造句]( "“stressed syllable”寫句子，用stressed syllable造句")
“stressed syllable”寫句子，用stressed syllable造句
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