1) double-orifice effect
双小孔效应
2) keyhole effects
小孔效应
1.
A theoretical and experimental investigation on keyhole effects in deep penetration laser welding;
激光深熔焊接小孔效应的理论和试验研究
2.
After widely analyzing the existing research works on deep penetration laser welding, in view of the existing problems, the keyhole effects in deep penetration laser welding are theoretically and experimentally studied in this paper.
本文在分析现有激光深熔焊接研究成果的基础上，针对现有研究存在的主要问题，采用理论研究和试验研究相结合的方法，对激光深熔焊接过程中的小孔效应进行了较深入系统的研究。
3.
The keyhole effects in deep-penetration laser welding of GG17 (Pyrex) glass are theoretically and experimentally studied in this paper.
本文采用理论和试验相结合的方法系统地研究了激光深熔焊接GG17(Pyrex)玻璃时的小孔效应。
3) two orifice valves
双小孔阀
1.
Two specialties of L type pulse tube refrigerator were described: L type pulse tube was used instead of ordinary I type pulse tube,which can decrease the dead volume of the cold head and simplify the manufacture of the cold end;two orifice valves were adopted instead of single orifice at the hot end of pulse tube,which can control the mass flow rate of inlet and outlet of pulse tube respectively.
介绍了文中提出的L型脉管制冷机的特点:一是采用L型脉管结构而不是通常的直型(文中称为I型)脉管结构,降低了冷端死容积,且降低了冷头加工难度;二是在脉管热端采用双小孔阀结构取代了通常的单小孔阀结构,用来分别控制脉管热端进排气的质量流率;以四阀型脉管制冷机作为实验样机,给出了此种新型结构在有阀氦压缩机驱动下的初步性能试验,初步试验结果表明本文中的L型脉管制冷机在频率为2。
4) porthole effect
孔道效应
1.
The structure and configuration of the porous minerals were discussed, and the porthole effect and surface charge effect were mainly illuminated.
对多孔矿物材料的孔道结构和形态进行了分析,然后对多孔矿物材料的孔道效应和表面荷电效应进行了重点介绍。
5) Empty hole effect
空孔效应
6) Keyhole phenonena
栓孔效应
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