specific radioactivity
英 [spəˈsɪfɪk ˌreɪdiəʊæk'tɪvəti]
美 [spəˈsɪfɪk ˌreɪdioʊæk'tɪvəti]
网络 比放射性; 放射性比活度; 比活度; 比活性; 放射性比度
双语例句
- Specific Radioactivity Produced by the Secondary Charged Particle Nuclear Reaction in the Primary Circuit Water of PWR
压水反应堆一回路水中二次带电粒子核反应产物的比活度 - In this survey, the surface γ dosage, radioactivity specific activity, uranium and thorium series equilibrium, the content of radioactive element of three kinds of typical Chinese zircon mineral has been analyzed, and the component and radioactivity of zircon in Wanning, Hainan Province tested.
调查分析了我国3个典型矿区锆英砂堆放表面γ剂量、放射性比活度、铀系和钍系平衡状况以及放射性元素含量；测定了我国海南万宁矿区锆英砂的组成及放射性。 - Three samples consisted of standard or quasi-standard substances with known specific activities of some nuclides while the radioactivity of the other sample was unknown.
该比对中的三种样品是由一些具有已知核素比活度的标准物质或准标准物质构成，而另一种是活度未知的盲样。 - A simple method for estimation of DNA specific radioactivity in aspirated bone marrow cells
人活体穿刺骨髓DNA比放射性的测定方法 - These results indicate that the increase of sugar content in juice sacs by delayed harvest was contributed by the continuous movement of photosynthates into juice sacs driven by the specific 14C radioactivity gradient in the pathway of photosynthates translocation.
上述结果表明完熟采收有利于提高果实含糖量，光合产物通过存在于运输路径中的由高到低的光合产物的梯度推动而持续输入汁囊是完熟采收增糖的主要原因。 - Standard methods were used for analyzing low specific gamma radioactivity of samples by semiconductor gamma spectrometers.
[方法]用半导体γ谱仪分析低比活度γ放射性样品的标准方法。 - Methods The measurable range was broadened through: Lowering of the specific radioactivity of the labelled antigen, increasing the concentration of the anti-serum and improve the curve fitting method.
方法：通过降低标记抗原的比放射性，提高抗血清的浓度，改进曲线拟合方式等方法，扩大测定范围。 - At last the average ratios of specific radioactivity uptake of bilateral dopamine transporters ( Striatum/ Cerebellum-1) were evaluated and compared.
图像分析得到纹状体与小腑的平均光密度值，计算并比较各组左、右两侧脑多巴胺转运体的特异性放射性摄取比值（纹状体/小脑-1）的变化。