... guaranteed efficiency 实际效率 glass filled plastic 纤维塑料 grey alkyd 灰醇酸 ...
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glass filled plastic
玻璃填充塑料
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The latest evolution in data security leaves numbers behind and returns to the physical world: A plastic token filled with microscopic glass spheres, and it looks like a much harder nut to crack than the codes of the past.
FORBES: Safety in Numbers
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