火山管（volcanic pipe）亦称火山筒。岩浆喷出地表时形成的圆形或近圆形的地下通路，常被熔岩、火山碎屑岩所充填。
...c depre io 火山构造地堑 volcano-tectonic grabe 火山构造线 volcano-tectonic line; 火山管 volcanic chimney; volcanic pipe; 火山集块岩 volcanic agglomerate; ..
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这些管是由火山的熔岩流出后形成，他争辩。
These tubes were formed after the flow of lava from volcanoes, he contended.
在裸眼完井产能评价模型的基础上进一步推导出火山岩气藏射孔完井和割缝衬管完井产能评价模型。
Through the open hole completion productivity evaluation model, respectively derive perforated completion and slotted completion productivity evaluation models.
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