wave hole

The Dispersion of Circled Hole in the Whole Elastic Space by SH Wave

弹性全空间圆形孔洞对P波的散射

Analysis on Air Blast Wave in Surface Hole Blast in g

露天钻孔爆破中的空气冲击波分析

Through hole filling is always a big challenge for wave soldering in multilayer PCB assembly, especially when encountering thick boards or components with large thermal dissipation.

钎料的通孔填充性问题一直是无铅波峰焊工艺在焊接双面板或多层板时一个很大的挑战，特别是遇到大厚板或者存在大吸热元件时填充不良现象尤为严峻。

11950s: mass soldering for Through Hole Technology ( THT)& wave soldering appeared;

1950年代：通孔插装的群焊技术&波峰焊技术出现；

Ultrasonic Lamb wave tomography of through hole flaws in isotropic thin plates

各向同性薄板中横穿孔缺陷的超声兰姆波层析成像

Combining ray tracing with algebraic reconstruction technique ( ART), ultrasonic Lamb wave tomography for through hole flaws is developed.

综合射线追踪与代数重建技术（ART），发展了横穿孔缺陷的超声兰姆波层析成像方法。

To study the ultra-narrow linewidth fiber laser, the saturable characteristic of unpump EDF and the loss spectrum resulting from spatial hole burning ( SHB) induced by stand wave in it were measured.

测量了未抽运掺铒光纤的饱和吸收特性和驻波诱导增益烧孔导致的损耗波长相关特性，为超窄线宽激光器研究奠定了基础。