单词：penetration factor
penetration factor的用法和样例：
例句
- The greater penetration of the new projectiles will result in greater injuries.新式导弹的更大穿透力将导致更大的伤亡。
- No difference was seen in the penetration into intact and stripped skin.完整皮肤和离体皮肤的药物穿透力无差异。
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