Data Circuit and Data Service Unit (DSU) are provided and maintained by CHT while the Customer Premises Equipment (CPE) is provided and maintained by the customer.是什么意思_Data Circuit and Data Service Unit (DSU) are provided and maintained by CHT while the Customer Premises Equipment (CPE) is provided and maintained by the customer.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句