chemical dating造句

• In recent years , the electron microprobe chemical dating technique has been advance development and achievements , this paper sysmaticly introduces the basic principle , sample prepation , analytical procedure and age calculation
  近十年来电子探针化学测年技术发展迅速，并取得了丰富的研究成果。
• At the same time it ' s advance and limitation is discussed , and it indicate chemical dating technigue on the electron - probe microanalysis has wildely the prospect of applincation in earth sciences
  本文在简单介绍该技术发展历程后，进一步详细介绍该技术的基本原理、样品制备与分析、年龄计算方法等内容，最后讨论了该技术的优缺点，同时指出电子探针测年技术在地学中的具有广泛的应用前景。