การดู
6:03
Work, Force & Energy | What Is Force? | Science For Kids | The Dr Binocs Show | Peekaboo Kidz
3:27
PolyK Piezo d33 Meter Measure Soft Electret with static force sensor
1:29
USA In stock Piezo d33 meter measure soft electret (with static force sensor)
4:47
Forces: Push and Pull Motions for Kids
0:33
DX 320HC COERCIVE FORCE METER
1:49
DST Digital Force Gauge (Previous Version)
0:37
Belt Tension Meter PCE-BTM 2000
4:32
PS / FB Force Gauge Basic Operations
