He found that the length of time it takes a sound's echo to decay is determined by the absorption of the sound's original energy by surrounding material.
他发现，声音回声衰减的时间长短取决于周围物质对声音原始能量的吸收。
When the star exploded, it sent out a blast wave into the surrounding material, scooping up interstellar dust and gas as it went, like a snow plow.
当这颗恒星爆发的时候，它产生的冲击波向周围扩散，如同一个铲雪犁一般掀起路径上的星际尘埃。
In this video segment, John Coonrod of Rogers Corporation helps viewers understand the confusion surrounding material data comparisons.
在本视频中，罗杰斯公司的孔罗德先生将帮助观众来正确理解材料数据对比。
Relative age, in contrast, is the approximate age of rocks, fossils or minerals made by determining the age of the material relative to other surrounding material.
相反，相对年龄是岩石、化石或矿物的近似年龄，是通过对有关的其他周围物质的年龄测定而得出的年龄。
Minerals that melt at lower temperatures and are lighter than the surrounding material tend to rise, melting their way up through the overriding plate to erupt as volcanoes on the ocean floor.
熔点较低，及轻于周围物质的矿物质往往会往上升，融化并穿破其上方的板块，爆发成为海底的火山喷发。
Minerals that melt at lower temperatures and are lighter than the surrounding material tend to rise, melting their way up through the overriding plate to erupt as volcanoes on the ocean floor.
熔点较低，及轻于周围物质的矿物质往往会往上升，融化并穿破其上方的板块，爆发成为海底的火山喷发。
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