The lead editorial searched and questioned for an explanation for the first ever occurrence on the professional racquetball circuit.
牵头社论调查和询问，为了解释这个之前从未发生在职业壁球巡回赛上事情。
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Or you could sit at a bench with other technicians placing completed cell-phone circuit boards into lead-lined boxes resembling small kilns, testing each piece for electromagnetic interference.
When the device was removed and examined, it transpired that the insulation on the excess lead, coiled up next to the generator, had worn away, causing a short-circuit.