スクリューギアでしょう
sukuryūgiadeshō
1. Probably a screw gear.
Noun
#3289862
1. Probably a screw gear.
1. gear
1. figure; form
2. figurine; model figure
3. figure skating
1. screw
2. screw propeller; screw
1. corkscrew
1. it seems; I think
2. right?; don't you agree?
1. Of gear; Gear's
1. With gear; By gear
1. With a screw; By screw