The jeans are designed by online clothing company Betabrand and use a silver-based material to block signals.
反病毒公司诺顿正在与厂商联合研发一款由能屏蔽无线信号的材料制成的牛仔裤。
The invention discloses a silver-based amorphous alloy and a preparation method thereof, and belongs to the technical field of metal material preparation.
一种银基非晶合金及其制备方法,属于金属材料制备技术领域。
Article 21 the minting and issuing of gold - and silver-based souvenir COINS shall be handled by the People's Bank of China, and no other unit may mint, imitate or issue such COINS.
第二十一条金银质地纪念币的铸造、发行由中国人民银行办理,其他任何单位不得铸造、仿造和发行。
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