This paper surveys the new development in the research of casting penetration technology in the world since 1990s.

回顾了90年代以来国内外铸渗工艺研究取得的新进展；

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In fact, one recent survey suggested that market penetration of such systems doubled from 2009, with more than half of fleets questioned indicating that they now use the technology.

事实上，最近的一个调查显示与2009年相比，这个信息技术的使用翻番，有一半以上的车队曾经对这个系统质疑过，但是他们现在开始使用这项技术。

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As of June 2004, more than five million Bluetooth-enabled devices ship each week, providing a high penetration rate in the consumer electronics market for the technology.

截止 2004 年 6 月，每周交付的支持蓝牙的设备超过五百万台，这项技术在消费电子市场上拥有强大的渗透率。

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In part six, I argued that there could be stark benefits and massive business disruption even at low penetration rates of driverless technology.

FORBES: Google's Driverless Car Is Just One of Many Looming Disruptions

Repeaters can solve the penetration problem and we know that technology moves swiftly down the price curve.

FORBES: Will The U.S.Allow Foreign Ownership Of A Giant Swath Of Our Broadband Spectrum?

Never mind that, as fellow Forbes contributor Adam Thierer has written, almost no consumer technology has ever reached 100% penetration.

FORBES: The FCC Scores a Hat Trick of Errors on Internet Regulation