基本解释光纤复合架空相线同根派生 OPPC相关词英汉例句Optical Fiber Composition Phase Conductor (OPPC) 光纤复合相线optical fiber compositin phase conductor (OPPC) 光纤复合架空相线Optical Phase Conductor (OPPC) 光纤复合相线OPPC cable OPPC光缆OPPC更多例句