译者注：色温是表示光源光色的尺度，单位为K开尔文。色温是在摄影、录象、出版等领域具有重要应用。
Kelvins: a CFL's color is indicated by the Kelvin (k) temperature (listed on the package).
专用光源的发射光谱与作物对光色的选择性吸收光谱相匹配，其针对性强、光效高，是给作物照明的最佳选择。
Its emission spectrum is marching with the crop absorbing spectrum, so it has good pertinence and high efficiency, and it is the best choice to light crops.
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