ビデオについて Pulley
pulley (19)
diy (1746)
design (995)
mechanical (114)
engineering (556)
lift (36)
rope (39)
machines (46)
engine (200)
acceleration (45)
friction (27)
aluminum (120)
machining (143)
cnc (220)
electronics (473)
pulleys (8)
climbing (27)
rigging (87)
rescue (40)
machinist (62)
workshop (218)
lathe (211)
do it yourself (431)
engineer (130)
cad (124)
tension (41)
diagram (61)
physics (468)
math (491)
mechanical engineering (65)
mechanics (86)
Show More