单词 | stone-dust barrier |
释义 | stone-dust barrier [`stōn ¦dǝst `bar·ē·ǝr] MINING ENGINEERING A device erected in mine roadways to arrest explosions; consists of trays or vee troughs loaded with stone dust, which are upset or overturned by the pressure wave in front of an explosion and the flame, producing a dense cloud of inert dust which blankets the flame and stops further propagation of the explosion. |
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