Critics point out that Bitcoins suffer the same flaws as other metal-based currencies with finite supply.

批评者指出，比特币与其他基于金属的货币一样有存在供给极限的缺陷。

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Was founded in 2003, are engaged in processing of vacuum heat treatment of metal-based professional firms.

宏成真空热处理有限公司成立于2003年，是从事以金属真空热处理加工为主的专业公司。

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This paper shows some properties and traditional making techniques of metal-based FGM, and their limitation.

本文综述了金属基功能梯度材料的特性和传统制备工艺，总结了其不足和缺陷。

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In today's metal-based gadgets, you either need to bend a piece of sheet metal, or die-cast with an inferior alloy like aluminum or magnesium.

CNN: Next iPhone may be housed in 'Liquidmetal'

"Although the group's early years were more heavy-metal-based, they were one of the first bands to incorporate a more alternative and ethereal sound into their thunderous and visceral music, blazing a trail that newer bands continue to follow today, " Portnow said.

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The material is an organic photovoltaic semiconductor (called rr-P3HT) which, unlike the metal or silicon-based materials used until now for such biotechnological interfaces, is soft, light, flexible and highly biocompatible and naturally sensitive to visible light.

FORBES: Artificial Retina From A Photovoltaic Polymer