呼叫保持补充业务能允许一个用户中断一个已经存在的呼叫的通信，随后在要求时仍可重建通信。
The call HOLD (HOLD) supplementary service, allows a user to interrupt communications on an existing call and then subsequently, if desired, re-establish communications.
LED照明低温的特性，可变相降低用户空调成本，同时其更长的寿命有助于减少维护以及业务中断次数。
The lower temperatures of LED lighting also translate to lower air-conditioning costs, while their longer life spans minimize maintenance and business disruption.
LED照明低温的特性，可变相降低用户空调成本，同时其更长的寿命有助于减少维护以及业务中断次数。
The lower temperatures of LED lighting also translate to lower air-conditioning costs, while their longer life spans minimize maintenance and business disruption.
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