掩体——掩体越重，挡在你和反射性沉降颗粒之间的物质——如厚墙壁，砖块，书本，土层越多，保护效果越好。
Shielding - the heavier and denser the materials - thick walls, concrete, bricks, books and earth - between you and the fallout particles, the better.
掩体——掩体越重，挡在你和反射性沉降颗粒之间的物质——如厚墙壁，砖块，书本，土层越多，保护效果越好。
Shielding - the heavier and denser the materials - thick walls, concrete, bricks, books and earth - between you and the fallout particles, the better.
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