1) counterbore
[kauntə'bɔ:]
沉孔
1.
The sizes of holes of commonly used fastener and counterbore and normal diameters of bolts and screws assembled with them have remarkable linear dependence relationship.
常用紧固件通孔及沉孔的尺寸 ,与装配的螺栓或螺钉的公称直径均有显著的线性相关关系 ,从而建立起各种一元线性回归方程 ,以取代传统的查手册取值法 ;若用在CAD绘图软件的运行中 ,更能提高绘图设计的工
3) perforated caisson
开孔沉箱
1.
The theoretical study and experimental validation of wave reflection induced by the interaction of oblique waves with perforated caissons;
开孔沉箱与斜向波作用的理论研究和实验验证
2.
Theoretical study of wave forces induced by the interaction of oblique waves with perforated caissons;
开孔沉箱在斜向入射波作用下受力研究
3.
Experimental study of calculating for wave forces acting on perforated caisson
规则波作用下开孔沉箱波浪力计算方法的实验研究
5) countersunk
[英]['kauntə,siŋk] [美]['kaʊntɚ,sɪŋk]
沉头孔
6) tube counterbore
管沉头孔
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