Annual growth rings. Cross-section through the trunk of a tree showing growth rings. Each ring represents the growth of the tree during one year. The circular shape between the rings is a knot, which marks the former postion of a branch.

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Details

Creative#:

TOP10173570

Source:

達志影像

Authorization Type:

RM

Release Information:

須由TPG 完整授權

Model Release:

N/A

Property Release:

N/A

Right to Privacy:

No

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Same folder images