isotopic tracer meaning in English
示踪同位素
同位素示踪剂
同位素示踪物
同位素指示剂，示踪原子
同位素指示器
Examples
- Applications of isotopic tracer in analysis of residual sulfonylurea herbicide
同位素示踪法在磺酰脲类除草剂残留分析中的应用 - The global change study is one of the most spectacular and interesting environment scientific questions in the 1990 s . the message of global change stores in tree rings , ice core , loess , underground water , lake sediment and deep sea sediment , all these proxies record the information of global change . with the advances in stable isotope techniques , the isotopic tracer records the message of climatic variation and becomes a powerful tool that can understand paleoenvironment reconstruction and modern environment changing
全球变化研究是90年代以来最为引人注目和关切的环境科学问题之一。全球环境变化的信息储存于树轮湖泊冰芯黄土地下水和海洋沉积物等载体中，随着稳定同位素技术的发展，同位素示踪剂指示环境变化的信息，成为了解古环境再造和现代环境信息变化的一个强有力的工具。 - Tree ring is a kind of natural archives , on which the isotopic analysis is important to study global climate and environmental change . the authors mainly provide a comprehensive introduction to the fractionation models of carbon , hydrogen and oxygen isotope in plants , their research techniques and the extract methods from cellulose . that results show isotopic tracer can record the message of climatic variation and has become a powerful tool for paleoclimate reconstruction and for the modern environment changing research . especially studying on pages , the cellulose isotopic analyses of imbedded old tree ring have become the mainly quantitative means of environmental evolvement . in addition , china is a typical monsoon country , research in tree ring stable isotope seasonal variation can give us a lot of important information on that . up to now , the research techniques and works on tree ring in our country are still in its earlier stage , and remain many limitations . it needs further accumulate basic research materials , intensify regional contrast and intercross studies on relative subjects
尤其是在过去全球变化pages研究中，埋藏古木纤维素中的碳氢氧同位素分析已成为环境演化研究的主要量化手段。另外，对于中国这样典型的季风气候国家，开展树轮稳定同位素随季节性变化的研究具有重要的意义。我国在树轮研究方面起步较晚，研究方法和研究内容上也比较简单，还存在不小差距，既要进一步积累基础资料，又要做区域对比，加强与相关学科的交叉研究。