| 单词 | electronic switching system(ESS) |
| 释义 | electronic switching system(ESS)A class of modern switching systems in which the control functions are performed principally by electronic devices. There are two types in use: time division and space division.; 一种现代化交换系统,其中主要由电子设备来完成控制操作,使用中有两种类型:时分 和空分系统。 |
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