| 释义 |
DictionarySeedecibelline level
line level[′līn ‚lev·əl] (communications) Signal level in decibels at a particular position on a transmission line. (engineering) A small spirit level fitted with hooks at each end so that it can be hung on a horizontally stretched line. line level  line level A special spirit level used in checking the floor of an excavation, in laying pipe, and for similar work; each end of the level has a hook, permitting it to be hooked over a horizontally stretched line; is especially light and short.line levelThe signal strength within a transmission channel, measured in deciBels or nepers. See deciBel, neper and line-level preamp. |