NET
2 He opened the shaft of the abyss and smoke rose out of it like smoke from a giant furnace. The sun and the air were darkened with smoke from the shaft.
Darby
2 And it opened the pit of the abyss; and there went up smoke out of the pit as [the] smoke of a great furnace; and the sun and the air were darkened with the smoke of the pit.
KJV
2 And he opened the bottomless pit; and there arose a smoke out of the pit, as the smoke of a great furnace; and the sun and the air were darkened by reason of the smoke of the pit.