Ball screw
滚珠
滚珠丝杠
滚珠丝杠副
滚珠螺旋
滚珠螺杆
球头螺钉
滚珠丝杆
球形螺钉
ball screw transmission
ball-screw-electromagnetism-dynamic
high precision gravity and high precision magnetic
2008 International Conference on Precision Agricul
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A High Precision Angle Servo System
aassembly precision pre-analysis
abrasive jet precision finishing AJF
Absolute Precision of Pose
Accuracy and precision of gas-mixture preparation