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- This example illustrates the great sensitivity of the radioactivity method. 这个例子说明了放射性方法很灵敏。
- The radioactive methods for determining 129I are mainly NNA and liquid scintillation counting, while the non-radioactive ones are mass spectrometry, atomic emission spectrometry, etc. 涉及的放化分析方法主要有中子活化和液体闪烁计数法等，非放分析方法主要有质谱和发射光谱分析法等。
- The radioactive methods for determining 129 I are mainly NNA and liquid scintillation counting, while the non radioactive ones are mass spectrometry, atomic emission spectrometry, etc. 涉及的放化分析方法主要有中子活化和液体闪烁计数法等,非放分析方法主要有质谱和发射光谱分析法等。
- The method seems good but it needs to be tried out. 这个方法似乎不错，但需要试验一下。
- Radioactive ray is material thing. 放射线是实际的物质。
- Radium and uranium are radioactive elements. 镭和铀是放射性元素。
- I can't claim infallibility for this method. 我不敢说这方法绝对有效。
- A certain discharge of possible radioactive effluent. 一定量的可能有放射性的废水。
- Summer fallow is the best method of destroying weeds. 夏季休耕是消灭杂草的最好办法。
- Popularizing this new method is not an easy job. 推广这种新方法不是件容易的工作。
- This is not an economical method of heating. 这不是一种经济的取暖方式。
- I have a simple and easy method. 我有个简易的方法。
- I went through by a summary method. 我成功运用了一个简易的方法。
- By this method, you obtain a good result. 用这种方法，你就会取得良好的结果。
- 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。
- Many times has he tried that method. 那种方法他已经试验许多次了。
- Our packing method shall be improved. 我们的包装方法应加以改进。
- His method of organizing the work is commendable. 他组织这项工作的办法是值得称赞的。
- We must get some method into our office filing. 我们必须把公文归档工作弄出些条理来。
- A naturally occurring or artificially produced radioactive element. 放射性元素自然产生或人为制造的放射性元素
