岩浆能喷发出地表，并通过火山峰顶形成熔岩流(大多情况会形成火山口)，但它也能通过火山山体侧面的火山岩圆顶和侧面出口喷发出来。
Magma can erupt to the surface and form lava flows through the volcano's summit (frequently forming a crater), but it can also erupt from lava domes and flank vents along the volcano's sides.
因此，这也从侧面印证了中国整体上是为了出口而进口的状况。
And this testifies the statement of "import for export" on the other side.
数值模拟表明，风机本身的离心力以及蜗壳内气流的夹带作用，导致固体颗粒向风机蜗壳的外侧面、后侧面聚集，该现象可以用于改善风机出口的颗粒分离。
Particles enrichment near the outside and rear side of the volute casing is caused by the centrifugal force and the flow entrainment according to the simulation prediction. This phenomena could be us…
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