常見例句雙語例句The tugboat could draw extra power from the battery when full-power surges were needed, and turn its diesel engines off altogether when it was idle, allowing the battery to power other equipment.在需要的功率激增時，拖船可以從電池獲得額外的電力；當它閑置時，可將其柴油發(fā)動機關(guān)閉，用電池為其它設(shè)備供電。 返回 draw-off equipment