The extinction coefficient for diffuse and direct radiation is given by crop canopy architecture and solar position.

冠层对太阳漫射光的消光系数由作物株型确定，对直射光的消光系数由株型和太阳位置确定。

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"My position is to reconsider our current position in light of the most recent scientific data to ensure that the current position that Palau takes will not lead to the depletion and extinction of whales, " he said.

BBC: Palau pioneers 'shark sanctuary'