open light是明火的意思么? 在网上查到一片文献摘要，有open light的一中用法（充分照明，全光），供楼主参考！ 最主要还是要看上下文 the height diameter ratios were 121.2 in strong light region (mean relative illumination at 15.21% ranging between 13.10%～17.50%), and 183.3 in weak light region(mean relative illumination at 5.82% (ranging) between3.2%～8.5%), while it was 70.4 in open-light region. there were differences of 1.5～2.5 folds between canopy base and open-light environment on the ratios, so the tree form in under story appeared in (thin) and tall. 高径比:强光区(平均相对照度15.21%,相对照度幅度13.10%~17.50%) 为121.2、弱光区(平均相对照度5.82%,相对照度幅度3.20%~8.50%) 为183.3、全光区为70.4,林冠下红松是全光区红松的1.5~2.5倍,说明林冠下红松属细高型。查看更多
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