RA size

RA size

[¦är′ā ‚sīz]
(engineering)
One of a series of sizes to which untrimmed paper is manufactured; for reels of paper, the standard sizes in millimeters are 430, 610, 860, and 1220; for sheets of paper, the sizes are RA0, 860 × 1220; RA1, 610 × 860; RA2, 430 × 610; RA sizes correspond to A sizes when trimmed.
References in periodicals archive ?
Table 3 shows comparison of RA size in ECHO according to severity of disease.
Comparison of RA Size in ECHO According to Severity of Disease Severity Normal Enlarged No.
At some frequencies in the operating band, the reflection coefficients magnitudes cross over the threshold level, which can be reduced by making a circular hole cut at the center of RA, but it will reduce overall antenna gain due to RA size reduction.