the action or process of making a way through or into something
刺入，穿入；穿透
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the plant grows in clear, still waters where there is strong sunlight penetration .该植物生长在清澈静止，并能渗透强烈阳光的水中。
the ability to do this
穿透力
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a weapon which combines the power and penetration of radiation with the precision of the laser .一种将辐射能量和穿透力与激光精确性结合起来的武器。
the insertion by a man of his penis into the vagina or anus of a sexual partner
（对性伴侣阴道或肛门的）阴茎插入。
the infiltration of an enemy group or rival organization in order to spy on it
（对敌对团体或对手组织的）渗透
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the penetration by the KGB of the French intelligence service .克格勃对法国情报机关的渗透。
the successful selling of a company's or country's products in a particular market or area
（公司或国家的产品对某市场或地区的）打入，打进
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Japanese import penetration .日本进口商品对市场的渗透。
the extent to which a product is recognized and bought by customers in a particular market
（产品对市场的）渗透度，打进深度
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the software has attained a high degree of market penetration .这种软件获得了很高的市场占有率。
the perceptive understanding of complex matters
洞察力；敏锐
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the survey shows subtlety and penetration .那项调查表现出了细心和洞察力。
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penetrationn.刺入；穿入；穿透；洞察力；敏锐；穿透力；阴茎插入；渗透；打入；打进
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generationn.一代人；同代人；产生；发生；生殖；一代；生物繁殖
"late Middle English： from Latin