The JSOP Program Management Office is utilizing Alion’s research and simulation expertise in night vision, ammunition, accessory power, material replacement and noise/flash suppression.

Alion公司在夜视、弹药、附属电源、替代材料和噪音/闪光压制等领域的研究和建模经验可以很有效的帮助JSOP计划管理办公室。

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This process is termed "replacement" because solutions have dissolved the original material and replaced it with an equal volume of the new substance.

这个过程被称为“置换”，因为溶液溶解了原来的物质，并用等量的新物质取而代之。

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Titanium alloys are widely used in clinic as the preferred metal material for the replacement and restoration of surgical implants.

钛合金作为人体硬组织替代物和修复物的首选材料在临床上得到广泛的应用。

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One specific material he is working on may be suitable as a replacement technology for photovoltaic cells, one that promises to be one-hundredth of the cost of existing solar cells, which can overcome whatever efficiency loss it represents.

FORBES: Intelligent Design Comes To Inorganic Matter

Rather, replacement components would be generated as needed from feedstock material.

MSN: Future astronauts may rely on made-in-space parts

This week's accord could result in little more than a return to a 1994 pact between America and North Korea, by which North Korea froze its operations at Yongbyon in return for fuel oil shipments and an agreement eventually to provide replacement nuclear reactors that could less easily be used to make weapons material.

ECONOMIST: Some cheer over North Korea