请输入您要查询的英文单词：
单词
sonet/sdh
释义
SONET/SDH
SONET/SDH
(
S
ynchronous
O
ptical
NET
work/
S
ynchronous
D
igital
H
ierarchy) A common reference to SONET networks worldwide. See SONET.
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更新时间：2026/1/15 22:55:15