The exterior walls are three to three and a half feet thick to prevent penetration by bombs.外墙厚度为3至3.5英尺, 以防炸弹穿透。

penetration of the chest wall by ball or bayonet子弹或刺刀穿过胸膛

The water has become clearer, permitting deeper penetration by the heat of the sun.水已经变得更清澈, 能够更好的传递太阳的热量。

Middlesbrough deserved great credit for the way they attacked with penetration.米德尔斯伯堡足球队洞察一切的进攻策略值得大加赞赏。

the penetration of hostile defences对敌方防线的突破

moves designed to block enemy penetrations旨在阻止敌方突防的行动

the successful penetration of the KGB by the French intelligence service法国情报机构对克格勃的成功渗透

They have achieved a substantial market penetration in the highly competitive building site market.他们在竞争异常激烈的建筑工地市场中取得了可观的占有率。