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short-delay detonator
coal. 毫秒〔微差〕雷管
el. 短延时雷管; 瞬时迟发雷管
hydroel.st. 毫秒雷管; 微差雷管
short delay detonator
expl. 毫秒延时雷管
tech. 瞬时迟发雷管; 短时延迟雷管