| 单词 | root mean square |
| 释义 | root mean square in British Englishnoun the square root of the average of the squares of a set of numbers or quantities the root mean square of 1, 2, and 4 is √[(12 + 22 + 42)/3] = √7 Abbreviation: rmsroot mean square in American English Statistics the value of a quantity or the effective value of a periodic quantity, as a current, equal to the square root of the average (arithmetic mean) of the squares of a set of values |
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