Spad是什么意思

实用例句

1. The SPAD - 502 chlorophyll meter appears promising for rapid , on - farm analysis of crop nitrogen status.

叶绿素仪( SPAD -502)的出现使通过无损伤的田间速测对作物进行氮营养诊断成为可能.

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2. The inferring ability of SPAD value just slightly surpasses the logarithm - sum model in shooting stage.

在抽穗期和灌浆期,对数相加模型的反演能力明显优于SPAD值的反演能力.

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