Another reason is industry standards, where an external organization set cable and connector type specifications so sound systems can connect.
另一个原因是工业标准，外部组织设置电缆和插头的型号标准以便音响系统能够连接上。
Specifications and models of cable trays should comply with the design and specifications.
电缆桥架的型号及规格应符合设计及规范要求。
The cable tray should be erected according to the specifications and design, and if there are requirements from the owner, the construction should be performed according to the requirements.
桥架的安装应符合规范及设计的说明，如业主另有要求的情况下应按照业主的要求进行施工。
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