gōng chéng shī / jiǎn chá / le / diàn lù bǎn / shàng / de / měi gè / yuán qì jiàn / cái / zhǎo dào / shè bèi / gù zhàng / de / yuán yīn

工程师检查了电路板上的每个元器件，才找到设备故障的原因。

The engineer checked every component on the circuit board before finding the cause of the equipment failure.