The alternate cohering by the waves and decohering by the tapper continue uninterruptedly as long as the transmitting key at the distant station is depressed. Edward W. Byrn.十九世纪发明进展.
These blooms consist of particles of nearly pure iron cohering, but retaining still a quantity of slag or vitreous material, and other impurities, which slag, etc. Edward W. Byrn.十九世纪发明进展.