Shield material with some certain composition can absorb a large part of low energy photon of X-ray and reduce the radiation effect on electronic component.
采用一定组分的材料对X射线进行辐射屏蔽，可以吸收大部分的低能光子，减少X射线对电子系统的辐射损伤。
Provided is a built-in type cooker including a heat dissipation part connected to an electronic component and exposed to the outside of the cabinet.
提供一种嵌入式灶具，它包括连接于电子部件并暴露在灶箱外部的散热部分。
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