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单词
pyrheliometer
释义
pyr·heliometer
\|pī(ə)r, |pi(-+\
noun
Etymology:
International Scientific Vocabulary
pyr- + heli- + -meter
:
an instrument for measuring the sun's total radiant energy as received at the earth in order to determine the solar constant
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更新时间:2025/9/21 10:35:30