双面光滑，优良的弹性和柔韧性，便于加工，安装；
Double-sided smooth, excellent flexibility and flexibility, ease of processing, installation;
他用左手自负地挥动着一条盘绕的两头蛇，这代表他最终掌握了致命的双面光剑。
In his left hand he confidently wields a writhing two-headed serpent, which represents his eventual mastery of the deadly two-sided lightsaber.
实验表明，该设备总体性能处于国产双面光刻的先进水平，接近国外同类产品水平。
The results show that the performances of the tool are leading-edge at home and nearly reached the same level as that abroad.
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