機器
antique
archimedes
arm
arrangement
balance
class
college
consisting
demonstration
diagram
distance
earth
education
educational
effort
energy
engineering
engraved
etching
experiment
force
fulcrum
globe
greater
illustration
isolated
lever
leverage
levers
load
mass
mechanical
mechanics
model
physics
power
principle
renaissance scientists
rotate
scale
schematic
school
science
scientific
seesaw
simple
spherical
symbol
technical
technology
velocity
weight
white
wooden
wrist
定額
Lever with globe of Earth and small ball. simple machines by Archimedes. lever is a machine consisting of a beam or rigid rod pivoted at a fixed hinge or fulcrum.の素材 [FY310125585673]
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