(attenuation 的复数) n. 变稀薄, 变纤细, 衰减
[计] 衰减

plural of attenuation
n. weakening in force or intensity
n. the property of something that has been weakened or reduced in thickness or density

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Scotch whiskey is said, by some, to have many magical qualities. Now, scientists in Scotland have discovered one more: it can be a weapon against polluted waste sites. A by-product of the spirit is 99.96 percent effective in cleaning contaminated gr

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