copper造句
例句与造句
- Possibly they first found native copper and hammered it into shape .
可能他们最初找到的是生铜，把它锤击成形。 - The contact area between clamp and terminal is either silver or copper .
夹头和电极之间的接触面是银的或铜的。 - Are copper coins legal tender for a sum in excess of 10 pounds?
超过十镑的数目可以用铜币作为法定货币来偿付吗？ - The antiseptic properties of copper sulphate have never been questioned .
硫酸铜具有防腐性，这是不曾有过问题的。 - In addition to copper , there are many other metals which are good conductors .
除了铜，还有很多其它金属都是良导体。 - It's difficult to find copper in a sentence. 用copper造句挺难的
- The copper is disseminated in small joint surfaces and cracks in the porphyries .
铜浸染在斑岩的细小节理面和裂隙中。 - About half of the world's known supply of copper ore is already in use .
全世界已知的铜矿储量，大约有一半已在使用了。 - Copper atoms are replaced by zinc atoms as the amount of zinc is increased .
随着锌量的增加，铜原子逐步为锌原子所替代。 - Sometimes the carbon rods are copper coated to improve electrical conductivity .
有时这些碳棒包上一层铜，以增加其导电性。 - Among the mineral deposits of the province , tin occupies first place ; copper comes second .
该省矿藏，以锡最多，铜次之。 - Iron or steel placed in copper sulfate also receives a loose immersion deposit .
铁或钢放入硫酸铜中，也会生成疏松的浸镀层。 - The rate at which pulses can be sent and received on copper wires is called frequency .
脉冲通过铜线送出和接收的速度称为频率。 - When the gyro is vertical, the magnet is directly below the center of the disk of copper .
当陀罗处于垂直位置时，磁铁就在铜片中心下。 - The signals carried in copper wires consist of about one million waves per second .
在铜线中传送的信号是由大约每秒100万次波的电磁波所组成。 - The new boy took two broad coppers out of his pocket and held them out with derision .
新来的孩子从口袋里掏出两个大铜板，显出讥讽的神气伸出手来。
