It is analyzed and deduced that the fracture toughness KIC of the reactor material after being used 5 years. The two reactors is safety …

在推导出反应器材料使用5年后断裂韧度值K＿（IC）的基础上，对两台反应器的缺陷进行了安全评定。

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A nuclear reactor produces electricity by heating up the radioactive material in its core, which then heats water to produce steam. That steam is used to turn turbines that produce electricity.

核反应堆通过加热堆心的放射性物质产生电力，然后用这些电力加热水产生蒸汽，再用蒸汽驱动涡轮发电机发电。

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Amano also told the meeting that Syria still refuses to discuss allegations it had been building an undeclared nuclear reactor intended to produce bomb material.

天野之弥还在会议上表示，叙利亚仍然拒绝讨论有关指称，说它在过去建造了一个没有宣布的核反应堆，以此用来生产炸弹材料。

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France would then convert the material into metal rods to be used by the Tehran reactor.

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Neutrons do not, so they escape and go thudding into the shielding material around the reactor.

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In addition to driving the turbines to create electricity, the steam generators are "one of the barriers between the radioactive material in the reactor core and ultimately the external environment, " Jaczko noted.

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The United States and other leading nations have been negotiating with Iran to send low-enriched uranium abroad to be turned into material for use in medical research and treatment at a reactor in Tehran.

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