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magnetic car
|
CN¥ 4.96 |
magnetic levitation
|
CN¥ 6.74 |
magnetic levitation pen
|
CN¥ 6.74 |
salvaging a sunken ship
|
CN¥ 5.24 |
electric heating cutter
|
CN¥ 6.36 |
recoil cart
|
CN¥ 4.68 |
wind power generation
|
CN¥ 10.1 |
wind direction
|
CN¥ 4.68 |
crossfire
|
CN¥ 11.98 |
wind-powered car
|
CN¥ 8.14 |
thermal expansion and contraction of solids
|
CN¥ 3.65 |
traffic light
|
CN¥ 7.57 |
pulley dynamometer
|
CN¥ 7.01 |
the singing rubber band
|
CN¥ 4.49 |
volcanic eruption
|
CN¥ 4.86 |
robotic arm
|
CN¥ 4.77 |
simple fan
|
CN¥ 6.08 |
simple water purifier
|
CN¥ 5.43 |
dinosaur fossil
|
CN¥ 6.74 |
connected vessels
|
CN¥ 9.16 |
well with a well wheel
|
CN¥ 5.51 |
magdeburg hemispheres
|
CN¥ 7.3 |
friction and mechanical advantage
|
CN¥ 6.45 |
homemade panpipe
|
CN¥ 4.21 |
colorful music bottle
|
CN¥ 5.43 |
balloon helicopter
|
CN¥ 2.71 |
the thermal expansion and contraction of gases
|
CN¥ 3.93 |
submarine
|
CN¥ 4.59 |
periscope
|
CN¥ 8.04 |
human skeleton
|
CN¥ 3.55 |
cognitive solar
|
CN¥ 8.23 |
sundial
|
CN¥ 6.36 |
lifting platform
|
CN¥ 12.63 |
amphibious vehicle
|
CN¥ 8.04 |
water compass
|
CN¥ 3.28 |
the altitude of the sun
|
CN¥ 5.32 |
balance scale
|
CN¥ 8.04 |
leap frog
|
CN¥ 3.65 |
table lamp
|
CN¥ 5.7 |
a ball that can’t be blown open
|
CN¥ 6.74 |
the light bulb lit up.
|
CN¥ 5.15 |
earthquake alarm apparatus
|
CN¥ 10.1 |
homemade clock
|
CN¥ 4.59 |
homemade hourglass
|
CN¥ 3.65 |
homemade chiaroscuro lamp
|
CN¥ 6.08 |
homemade motor
|
CN¥ 12.63 |
steamboat
|
CN¥ 5.05 |
balance
|
CN¥ 4.86 |
the cause of lunar phases
|
CN¥ 6.08 |
the little frog has grown up.
|
CN¥ 4.21 |








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