fractorite分级: grade; classify; classificat ...炸药: explosive; explosive charges ...级炸药: a blasting powder; explosive b b次高级炸药: noninitiating high explosive; secondary high explosive次级炸药: secondary explosive下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:分级炸药,即可在微信中查询翻译