Whistle valves are made of a copper-silicon alloy.
雾笛阀门由铜硅合金制成。
2
Photovoltaic cells rely on amorphous or crystalline silicon, cadmium telluride, or copper indium selenide and sulfide.
光伏电池依赖于非晶态或晶态的硅，碲化镉或者硒化、硫化铜铟。
3
Alloy steel owe their properties to the presence of one or more elements other than carbon, namely nickel, chromium, manganese, molybdenum, tungsten, silicon, vanadium, and copper.