The photosynthetic responses determine the habitat of P . rubens and P . Mariana in the climax forest.

光合反应决定红云杉和黑云杉在顶极林中的生态环境.

辞典例句

A northern North American spruce ( Picea mariana ) having blue - green needles and small egg - shaped cones.

一种北美北部的云杉 ( 黑云杉云杉属 ),有蓝绿色的杉针和小的蛋形的球果.

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