英语词汇“secondary drilling”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	secondary drilling
释义	secondary drilling secondary drilling [′sek·ən‚der·ē ′dril·iŋ] (mining engineering) The process of drilling the so-called popholes for the purpose of breaking the larger masses of rock thrown down by the primary blast.
随便看	data refinement system data reformatter unit data regenerator data register data relay and technology mission data relay and tracking satellite data relay and tracking satellite system data relay and tracking system data relay console data relay satellite data-relay satellite data relay satellite system data relay station data relay terminal data relay tracking satellite data relay transponder data release authority - program office data release authorization data release division data release guidelines working group data release number data release users guide data reliability data relocation data relocator

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