lack of penetration

基本解释

But the French side may bemoan a lack of penetration and risk-taking on their own patch when this tie draws to an end.
但法国球队在自己的场地上也没有什么穿透力和有威胁的进攻。
forum.sports.sina.com.cn
Without disturbance of surface echo wave, defect wave is easily identified by using shear wave to detect lack of penetration in the root segment.
利用横波检测根部未焊透缺陷，无表面回波干扰，缺陷波容易识别。
In order to improve detection precision, the method of detecting T-type fillet weld lack of penetration height was discussed using ramp probe in the wing.
为提高检测精度，探讨了用斜探头在翼板上检测T型角焊缝未焊透高度的方法。

The resulting lack of competition may explain why no Scandinavian countries are in the top six for broadband penetration, despite having unusually high rates of Internet usage.
ECONOMIST: High-speed Internet access