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base line

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base line

[′bās ‚līn]
Abbreviated BL.
(electronics)
The line traced on amplitude-modulated indicators which corresponds to the power level of the weakest echo detected by the radar; it is retraced with every pulse transmitted by the radar but appears as a nearly continuous display on the scope.
(engineering)
A surveyed line, established with more than usual care, to which surveys are referred for coordination and correlation.
A cardinal line extending east and west along the astronomic parallel passing through the initial point, along which standard township, section, and quarter-section corners are established.
(graphic arts)
The bottom alignment of upper-case letters in a font.
(navigation)
The geodesic line joining the two stations between which electrical phase or time is compared in determining navigational coordinates.
(science and technology)
A line drawn in the graphical representation of a varying physical quantity, such as a voltage or current, to indicate a reference value, such as the voltage value of a bias.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

base line

A surveyed line which has been established with more than usual care, and to which surveys are referred for coordination and correlation.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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References in periodicals archive
Mean logMAR was reduced significantly (p less than 0.022) to 0.49 0.28 (range 0.0-1.0) from the base line value.
She added: "Inevitably the Base Line study is a snap shot in time and everyone is aware, for example, of the turmoil in financial markets since the work on the study started.
When we rolled up the life cycle base lines and added them together last year they came to pounds 56 billion.
The new Cove Base line is the latest addition to the Estrie Marathon Collection, a complete system of rubber tiles, accessories, adhesives, and cleaners.
Results: The primary end point occurred in 24 patients during the observation period; the serum creatinine levels and body lead burden at base line were the most important risk factors.
Offutt creates the proverbial straw man as the base line from which to measure her book, but in this case the straw man is dated.
Or you can choose to drop a few bunts down the third base line. But only one of these ways will work!"
Energy Star provides software, which, with the proper data entered will calculate your buildings standing, giving it a base line from which all energy future saving techniques and improvements can be evaluated.
This allows the automakers to create a base line forecast or virtual inventory from which they can promise units to dealers.
Figure 1 employs close-ended questions that are used to establish a base line of our customers' perceptions of our products and services.
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