Trundle wheel. This is used to measure approximate distances across large pieces of ground. The wheel has a circumference of one metre. It is pushed along the ground, so moves one metre for each revolution (assuming no slip). A device counts the number of revolutions and hence the distance covered. This is a simplified version of a surveyor's wheel.
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Details
Creative#:
TOP16630559
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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