“square grade”的概念、定义、翻译、参考文献-科学参考

单词	square grade
释义	square grade [`skwer `grād] ^MATHEMATICS A unit of solid angle equal to (π/200)² steradian, or approximately 2.46740 × 10^-4 steradian.
随便看	branchiate branching branching adaptation branching bay branching diagram branching fraction branching process branching ratio branching theory branch instruction branchiocranium branchiomere branchiomeric musculature Branchiopoda branchiostegite Branchiostoma Branchiotremata branchite Branchiura branch joint branch line branch point branch sewer branch transmittance brandtite

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