| 1. | An obvious restraint in the use of isotope ratios results from the need to employ mass spectrometers .
使用同位素比值法有着一个明显的局限因素，就是要用质谱仪进行分析。 |
| 2. | Fuzzy ratio method for ranking of multi - radiant imperilment
辐射源威胁大小综合排序的模糊相对比值法 |
| 3. | Measuring frequency of received signal by a spectrum line ratio method
谱线比值法测量接收信号的频率 |
| 4. | Reference - value method
参比值法 |
| 5. | Reference - v method
参比值法 |
| 6. | Determinaton of cotton maturity coefficient by lumen width - cell wall thickness ratio method
中腔胞壁比值法测定棉纤维成熟度系数的讨论 |
| 7. | The fault reasons of a phase c 378mva transformer in one group of main transformers are analyzed by three - ratio method . the improvement measure is presented
摘要利用三比值法分析了一台主变c相378mva单相变压器故障的原因，提出了改进措施。 |
| 8. | Ratio method , factor analysis method and multiple regression model were applied to source apportionment experiment of polycyclic aromatic hydrocarbons ( pahs ) in airborne particulate at traffic areas in nanjing
摘要通过比值法、因子分析法和多元逐步回归模型对南京市交通干道区颗粒物中的多环芳烃的源解析进行研究。 |
| 9. | Research and conclude the methods to determine blood pressure , present a method that systhsis the mean value method , comparing method and empiric coefficient method of the oscillometric blood pressure measurement
研究归纳血压检测方法，提出了一种综合示波法测血压中差值法、比值法和经验系数法的血压检测计算方法。 |
| 10. | It estimates relation degree between factors according to curves analogue degree . 3 ration method is usually used for transformer fault diagnosis , it sometimes can not judge fault because of its lack of enough ration codes
在变压器的故障诊断中普遍采用油中溶解气体分析( dga )导则推荐的三比值法。但因其比值范围不全，常导致在实际诊断过程中出现不能判断的情况。 |
