The needle gun has in the place of the swinging hammer a rectilinearly sliding bolt, carrying in front a needle which pierces the charge and ignites the fulminate by its friction. Edward W. Byrn.十九世纪发明进展.
They are then placed flat over a coal fire until the coating of fat ignites, which may burn as freely as required for great hardness. 威廉K.戴维.智者、化学家和伟大医生的秘密.
The electric spark ignites the compressed mixture and drives the piston to the right. 伯莎M.克拉克.科学通论.