On a slow accumulation of gas, due perhaps to slight overload, gas produced by decomposition of insulating oil accumulates in the top of the relay and forces the oil level down.
在气体慢积累模式中，可能由于轻微过在，绝缘油分解产生的气体在继电器的顶部聚集，迫使油位下降。
2
His diet certainly did not slow him down on the way to a pair of world records (in the 4x100 meter freestyle relay and 200-meter backstroke).