Meanings

helical gear

Major Mitchell's cockatoo (Cacatua leadbeateri)

spindle base

circular stone or jasper ornament from the Kofun era

opah (Lampris guttatus)

planetary gear

sun gear

spur gear

Parafontaria laminata (species of millipede)

spending the night in a car, train, bus, etc.

road-rail vehicle (vehicle which can travel both on railroad tracks and normal roads)

otaku car (painted with anime characters, loaded with figures and stuffed dolls, etc.)

car painted with anime characters

otaku car (painted with anime characters, loaded with figures and stuffed dolls, etc.)

standard-size car

limited express train

outside a car (train, bus, etc.)

tank destroyer

rail yard

Inula japonica