1) scalloping
[英]['skɔləp] [美]['skɑləp]
挖扇形孔
2) fan-patterned holes
扇形炮孔
1.
Experiments were conducted to investigate the effects of material strength and hole burden on the blast performance of fan-patterned holes in sublevel caving, and to analyze the factors affecting the effective area of blasting.
实验研究了试件强度与抵抗线对无底柱分段崩落法扇形炮孔爆破效果的影响,分析了有效爆破区域出现在孔底部位而不是孔口部位的原因,揭示了扇形炮孔爆破的方向性与顺势破坏效应,据此讨论了炮孔密集系数的合理取值范围以及孔底起爆的适用条件等;应用试验结果改进北氵名河铁矿扇形中深炮孔的装药结构与起爆顺序,试验区大块率从3·0%降低到1·8%·并杜绝了爆破“隔墙”现象的发生
3) segmental blasting holes arrangement
扇形布孔
4) weld access hole
扇形开孔
1.
The proposed improvement is intended to reduce the stress and strain demands at the weld access hole .
本研究针对钢梁连接H型钢柱之接头,以扩大接头处梁翼板宽度之改良方式,改善扇形开孔处与梁翼全渗透焊道之应力集中现象。
5) scallops hole
扇形孔
1.
For influencing factor in the form of scallops hole,the failure experiment was done about four full-size specimens of steel frame beam-column welding connections under cyclic loading.
以梁端腹板的扇形孔形状为主要参数,进行了4个足尺钢框架梁柱焊接节点往复加载下的破坏试验。
6) double fan-shaped hole
双扇形孔
1.
Investigation of film cooling effectiveness for double fan-shaped holes;
双扇形孔气膜冷却效率的研究
补充资料：第二孔(继发孔)型缺损
第二孔(继发孔)型缺损
ostium secondary defect
是心房间隔在形成上发生障碍，一般缺损较大，多在卵圆孔附近称第二孔(继发孔)型缺损。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条