An error measuring system for multi-location numerical control cutter holder was developed by adopted non-contact photoelectric measuring method.
采用非接触光电式测量方法，设计了多工位数控刀架误差测量系统。
2
Objective To observe the short-term results of intervention al therapy for elderly patients with multi-segment and multi-location malignant biliary obstruction.
目的观察经皮胆管内支架置入术姑息性治疗老年人多部位、多节段肝胆管恶性梗阻的效果。
3
The multi-location horizontal numerical control driller is designed. The machine tool is rotary collocated and processing technic scheme adopts step by step feed.