金属

• Different metals are blended together to make alloys .
  合金由不同的金属掺合制成。
• But the metal that the car was made of is still good .
  但制成汽车的金属仍然有用。
• A sharp metallic rapping came on the front door .
  前门上响起一阵刺耳的金属敲击声。
• Metal smelters were built near richer mines .
  矿藏丰富的矿区附近建立了金属熔炼厂。
• Metals contract at low temperature .
  低温使金属收缩。
• Metal and glass beads may be removed by irrigation .
  金属和玻璃珠子可用灌水法取出。
• Dissolution of the metal may occur .
  金属会产生溶解。
• Hardness is caused by divalent metallic cations .
  硬度是由一些两价金属阳离子引起的。
• They are undesirable sources of their contained metals .
  它们不是所含金属的理想来源。
• Historically, wafers were waxed onto a metal plate .
  过去片子是用石蜡固定到金属板上。