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floor ripping blasting
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expl.
落底爆破
炸去地面上隆起的部位,使其变为平整的爆破。例如:在隧道掘进中,开挖面底板因爆破不充分而残留根底时,可用落底爆破予以平整。 rip blasting
tech.
落底爆破
;
卧底爆破
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