In the experiment, samples of pure tungsten were placed in the scrape-off layer of HT-7 tokamak to study the interaction between plasma and the surface of samples.
实验中将纯钨样品放入HT - 7托卡马克的刮削层中，以研究等离子体与纯钨表面的作用。
Other options to restore the frescoes would have required using chemicals to remove the unwanted layer or using physical means to scrape it off.
其他修复壁画的方法可能需要使用化学物质来去除不需要的层，或者使用物理方法将其刮掉。
Puffing gas can reduce the plasma temperature in the scrape off layer (SOL). Injected impurity can increase the radiation power in SOL. Both of them make the heat load on the plate target smaller.
喷气能降低删削层（SOL）处等离子体温度，注入的杂质增加了SOL处的辐射功率，使靶板的负载降低。
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