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| 41. | Earthquakes commonly accompany volcanic activity on movement of magma deep in the earth. |
| 地震通常都伴随着火山活动或地球深处的岩浆运动。 |
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| 42. | A body of igneous rock formed beneath the surface of the earth by consolidation of magma. |
| 火成岩岩浆凝固后在地表下形成的火成岩岩体 |
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| 43. | The rate at which magma leaves a chamber depends primarily on two factors: the magma's viscosity, or |
| 岩浆从岩浆库喷出的速度，主要取决于两个因素：岩浆的黏滞性（是流动能力）及岩浆库与地表的压力差。 |
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| 44. | The ship will be ejected along with the magma and steam several thousand feet into the air. |
| 飞船将会跟岩浆和蒸气一起 射向几千英尺的空中 |
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| 45. | Its difficult to decide the position of the unit in evo-lutional seriary of magma. |
| 该单元在岩浆演化序列中所处的位置难以确定。 |
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| 46. | They settle to the bottom of the chamber, leaving the remaining magma enriched in silica and aluminum |
| 它们沉到岩浆库的底部，因此，剩馀的岩浆富含矽和铝，石英安山岩即从中生成。 |
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| 47. | Magma occurs deep within the earth and is made up of a mixture of molten mineral materials. |
| 岩浆是形成在地球的深部，它是熔融的物质的混合物。当岩浆通过火山口溢出地表时，便可称这种熔融的岩石为熔岩。 |
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| 48. | Derived from magma poured out or ejected at the earth's surface.Used of igneous rocks. |
| 喷出的火山的来自于喷出或喷在地表的岩浆的。用于火成岩 |
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| 49. | In many places surface rocks have been melted, baked by the heat of magma beneath. |
| 地表岩石在许多地方被地下岩浆热量所熔化、所烘烤。 |
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| 50. | Valley and I saw immediately that the magma must have originated in rock once near the earth's surface |
| 我们立即了解，该岩浆必定是由近地表的岩石形成。 |
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