您要查找的是不是：
- Cemented carbides metal: Tungsten powder, carbonize tungsten, Cobalt powder, Molybdenum powder, pure tungsten, Cobalt nickel material, tungsten copper metal, etc. 硬质合金原料：钨粉、碳化钨粉、钴粉、镍粉、钼粉、高纯钨、钨铜合金、钴镍材料及其它合金粉末；
- Technology: high temperature plugs from copper contact with the ceramic composition, in the protection of the outer aluminum shell or silicone rubber protection produced by Shell. 工艺：高温插头是由铜芯接触面与陶瓷组合，在外层金属铝保护壳或硅橡胶保护壳制作而成。
- Determination of Copper Content in the Mixed Tungsten Copper Powder 钨铜混合粉中铜的测定
- Process and Characteristics of Oxygen Free Copper Contact Wire 无氧铜接触线加工工艺及产品性能研究
- Progress in Special Copper Contact Wire for Railways 轨道交通专用铜合金接触导线的研究进展
- Unusual Arc Distribution on Surface and Electrical Breakdown Mechanism of Nanocrystalline Tungsten Copper Alloy 纳米晶钨铜合金表面上不寻常的电弧分布及电击穿机理
- The thin wire is not made of copper; it is made of tungsten. 细导线并不是由铜制的，而是由钨制的。
- She cast her eyes down to avoid direct eye contact. 她垂下双目以避免对视。
- The chemical symbol for copper is "Cu". 铜的化学符号是Cu。
- What color is copper sulphate solution? 硫酸铜溶液是什么颜色？
- The switches close the contacts and complete the circuit. 这些开关可使接触器接通电流形成回路。
- Copper and gold are both metals. 铜和金都是金属。
- Copper has less resistance than lead. 铜的电阻比铅的小。
- That poor madam has lost all contact with reality. 那位可怜的夫人脱离了现实生活。
- For further information, contact your local agent. 要进一步了解情况，请与本地代理商联系。
- What color is copper sulfate solution? 硫酸铜溶液是什么颜色？
- Have the children been in contact with disease? 孩子们同这种疾病有过接触吗？
- A copper coin formerly used in India and Pakistan. 安那旧时在印度和巴基斯坦使用的铜币
- Ornamental copper pans hung on the wall. 墙上挂着装饰性的铜盘。
- Helping a caller to contact somebody by phone. 帮助打电话者同某人电话联系。
