small-diameter blasthole

small-diameter blasthole

[′smȯl dī¦am·əd·ər ′blast‚hōl]
(engineering)
A blast hole 1½ to 3 inches (3.8 to 7.6 centimeters) in diameter, in low-face quarries.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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