gōng / chéng / shī / zhèng / zài / pèi / zhì / jiāo / huàn / xū / diàn / lù / yǐ / què / bǎo / bù / tóng / shè / bèi / zhī / jiān / wěn / dìng / lián / jiē工程师正在配置交换虚电路,以确保不同设备之间稳定连接。The engineer is configuring switched virtual circuits to ensure stable connections between different devices.