“harmonic mean”的概念、定义、翻译、参考文献-科学参考

单词	harmonic mean
释义	harmonic mean [här`män·ik `mēn] ^MATHEMATICS For n positive numbers x₁, x₂, . . ., x_n their harmonic mean is the number n /(1/x₁ + 1/x₂ + . . . + 1/x_n ).
随便看	clock pulses clock rate clock signals clock star clock time clock track clock watch clockwork clod clog snow cloister vault cloithoid clone clonorchiasis Clonothrix clonus close close-control radar close-coupled pump close coupling closed aerodrome closed architecture closed association closed-belt conveyor closed-caption television

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。