生成

• The metal ion and the anion of the mineral acid form an insoluble salt .
  金属离子和无机酸的阴离子生成一种难溶的盐。
• A generalized model for cluster formation of arsenic atoms has been derived .
  砷原子生成聚集群团的一般模型已经导出。
• Refinery and petrochemical operation produce a variety of byproduct gases .
  炼油厂和石油化工生产中生成各种副产气体。
• There is a recursive formula for the number of spanning trees in a graph .
  对于一个图的生成树的棵数，存在一个递推公式。
• It represents an example of a heterocycle being formed as transient species .
  它仍然是在反应中生成过渡状态的杂环的实例。
• The heats of formation of various ionic compounds show tremendous variations .
  各种离子化合物的生成热显示出有很大的差异。
• The alkali halides can be grown into large crystals of excellent transparency .
  碱金属卤化物能生成具有优良透明性的大晶体。
• 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。
• He postulated that the carbon reacts initially with the sulfate to form calcium sulfide .
  他认为碳最初和硫酸盐反应生成硫化钙。
• The oldest sediments cored to date are about 150 million years old .
  到目前为止取出的最老沉积物的岩心是大约15亿年以前的生成。