Proper gating in this slotarea was the only way to avoid weld lines.
开口内采用适当的浇口是避开融接线的唯一途径。
2
Conclusion: the attention would be played to the influence of the roughness and abrasion of the bracket slotarea on friction and anchorage control in using sliding mechanics.
结论：使用直丝弓矫治技术时，应重视托槽表面粗糙、磨损对摩擦力的影响，注意支抗控制。
3
Slot: a temporary holding area where external systems deposit UMF files for ingestion.