decalumen

名词 n.
中文释义
英 /ˈdɛkəluːmɪn/   

英文释义

名词 n.
  1. A unit of luminous flux equal to ten lumens.
    — If the aquarium is placed where it receives insufficient daylight, artificial lighting by means of ordinary incandescent lamps should be employed. For good plant growth 2 decalumens of luminous flux per square decimetre of water surface […]

词形变化

decalumens plural

词源

From deca- + lumen.
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