(Market penetration rates) can be low.Logical formLearned from3 sentences. A central nervous system may undergo a penetration.Logical formLearned from3 sentences. A (market penetration) can be for digital television.Logical formLearned from3 sentences. A disparity can be in (penetration levels).Logical formLearned from3 sentences. (Telephone connections) may undergo a penetration.Logical formLearned from3 sentences. A (telephone penetration level) can be for some segments of society.Logical formLearned from3 sentences. A focus can be on (telephone penetration).Logical formLearned from3 sentences. Groups can be with (penetration rates).Logical formLearned from3 sentences. A penetration can be decisive.Logical formLearned from3 sentences. Skirtings may prevent penetration by projectiles.Logical formLearned from3 sentences. Notes may undergo a penetration.Logical formLearned from3 sentences. Ethanol may undergo a penetration.Logical formLearned from3 sentences. (Consumer electronics) may undergo a penetration.Logical formLearned from3 sentences. A penetration can be in progress.Logical formLearned from3 sentences. A man may find multiple penetrations.Logical formLearned from3 sentences.