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- This paper deals with the effects of ASU on the yield of Chinese Fir seedlings grewing on loamy yellow-red earth. The study was carried out on the basis of pot experiment by using tracer isotope ~(15)N. 本文系利用~(15)N示踪技术以研究ASU与氮肥配施对杉木苗的效果,氮素利用率及氮素在土壤和苗木间的平衡状况。
- A radioactive isotope of iodine widely used as a tracer in medical diagnosis. 放射性碘碘的一种放射性同位素，广泛地用于医学诊断作为追踪剂
- stable tracer isotope 稳定示踪同位素
- tracer isotope 示踪同位素
- A radioactive isotope of carbon, especially carbon 14. 放射性碳碳的一种放射性同位素，尤指碳14。
- This solute will be referred to as a tracer. 这种溶质称为示踪剂。
- The tracer becomes increasingly dispersed. 示踪剂逐渐地扩散。
- The symbol for the isotope deuterium. 氘的化学符号同位素氘的符号
- Deletes tracer token history information. 删除跟踪令牌历史记录信息。
- Identifies a tracer token record. 标识跟踪令牌记录。
- Chemistry To add a tracer to (a compound). 使示踪：向（一个复合物）加示踪剂
- Its most common form, or isotope, has 146 neutrons. 它最常见的形式或者同位素有146个中子。
- IS ~(40)Ca_(20) A STABLE ISOTOPE? ~(40)Ca_(20)是否稳定?
- Simmons: Get me a sample and some isotope readings. 弄些样本和同位素读数。
- Isotope shifts and hyperfine structure spectrum[J]. 引用该论文 马洪良.
- At present,the methods of isotope tracer and turbine flowmeter are universally used for testing annulus well in home oilfield. 同位素示踪法和涡轮流量计法是目前国内各油田普遍采用的环空测井方法。
- The tracer is distributed in a nearly normal fashion. 示踪剂的分布接近正态分布的样式。
- Changes of nuclear mass and nuclear size cause isotope shifts. 原子核质量和大小的不同引起同位素移动。
- Radionuclide tracer analysis is a third important method. 第三种重要方法是同位素示踪分析。
- The isotope ratio is directly used for comparing oils or gases. 同位素比率直接用于比较各种石油或天然气。
