“staggered blastholes”的概念、定义、翻译、参考文献-科学参考

单词	staggered blastholes
释义	staggered blastholes [`stag·ǝrd `blast´hōlz] ^{MINING ENGINEERING} Two rows of holes staggered to a triangular pattern to distribute the burden when shot-firing in thick coal seams.
随便看	echo repeater echo signal echosonogram echo sounder echo sounding echo-splitting radar echo suppressor echo talker echouterograph echovirus echylosis eckermannite Eckert number Eckert projection ECL eclampsia eclipse eclipsed antigen eclipsed conformation eclipse period eclipse seasons eclipse year eclipsing binary eclipsing variable star ecliptic

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