“heading blasting”的概念、定义、翻译、参考文献-科学参考

单词	heading blasting
释义	heading blasting Geology and Earth Sciences An old method of quarry blasting in which explosive is confined in small tunnels at suitable intervals in the quarry face. For large blasts, several tunnels may be used.
随便看	action spectrum Actium, Battle of activated adsorption activated alumina activated carbon activated charcoal activated complex activated-complex theory activated sludge process activation analysis activation energy activator active active antenna active area active attack Active Cavity Radiometer Irradiance Monitor Satellite active code active component active constraint active current active device Active Directory active euthanasia active filter

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