contact

• Individual layers generally have sharp contacts .
  单层间一般具有截然的接触带。
• How do you contact the mainland ?
  你们怎样同大陆联系呢？
• Have you been in contact with your sister recently ?
  近来你和你姐姐有没有联系？。
• Bodies at different temperatures are placed in contact .
  使不同温度的物体相接触。
• As the years passed, contact became increasingly difficult .
  越到后来，越难接近。
• Contact angles are of interest to ducks and swans .
  接触角对鸭和天鹅是颇为重要的。
• Most sulfuric acid is made by the contact process .
  大多数的硫酸是用接触法制造的。
• I was his one and only one contact .
  他和我单线联系。
• He had practically no physical contact with russian .
  他同俄国人简直就没有直接接触。
• Such a graph is defined to be a contact network .
  我们把这样的图定义为一个接触网络。