... 条纹霞石正长岩 kakortokite 条纹岩 ribbon rock 条纹正长岩 perthite syenite ...
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Rock Ribbon Wood 摇滚集层木
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The application of ribbon charge (placed in tunnel)in twin slope - cut chamberblasting can weaken the damage to slope rock from blasting.
在双路堑洞室爆破中应用条形药包可以减少爆破对边坡岩体的损伤。
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