| 释义 |
noun Physics.the luminous region between the Faraday dark space and the anode glow in a vacuum tube, occurring when the pressure is low. Words nearby positive columnposition paper, position sense, positive, positive accommodation, positive caster, positive column, positive convergence, positive crankcase ventilation, positive declination, positive definite, positive discrimination Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |