名词中文翻译
中文翻译：主要光度标准
同义词：
['primary standard', 'primary calibration']
例句：
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1.The primary photometric standard is used to measure the intensity of light.
主要光度标准用于测量光线的强度。
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2.The primary photometric standard was established in 1950.
主要光度标准于1950年建立。
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3. The primary photometric standard is crucial for accurate measurements.
主要光度标准对于准确的测量至关重要。