nominal activity

radioactive dating

ph.1. 【美】放射性测定年代

automatic filter activity meter

过滤圃动放射性测定仪

radiocarbon method

放射性碳测定年代法

radiocarbon 14 dating method

放射性碳14测定年龄法

A Testing Method on Detection Threshold for Channel Vehicle Radiation Monitoring System to γ Radionuclide Activity

通道式车辆放射性测控系统对γ放射性核素活度探测阈值的测定

whole body counter

测定全身放射性同位素的计数器

radioisotope dynamic-function testing equipment

放射性同位素动态功能测定仪

The determination for alpha-radionuelide of radium in water

GB/T11218-1989水中镭的α放射性核素的测定

The material in this beach has been dated by radiocarbon.

这个海滩上的物质经过放射性碳测定。

Absolute measurement of radioactive gas concentration of ~(133)Xe

~(133)Xe气体放射性浓度的绝对测定

determination of the activity concentration of radionuclides by high resolution gamma-ray spectrometry

用高分辨率伽马射线光谱测定法测定放射性核素活性浓度

DETERMINATION OF Pu, Am AND TOTAL α ACTIVITY FOR HIGH-LEVEL LIQUID WASTE

高放废液中钚、镅含量及总α放射性活度的测定

Quantitative determination of radionuclide labelled monoclonal antibodies

放射性核素标记的单克隆抗体的定量测定

two-site immunoradiometric assay

双位免疫放射测定法

In practice it would be possible to measure radioactivity one thousand fold less than this.

在实际上，可能测定的放射性比这个值小一千倍。

MEASUREMENT OF TOTAL BATA ACTIVITY IN WATER WITH LIQUID-SCINTILLATION COUNTER

用液体闪烁计数法测定水中总β放射性

Measurement of Radionuclides in Sediments Core by HPGe γ Spectroscopy

海洋沉积物岩心放射性核素的γ谱测定

Determination of radiobiological characteristics of CNE1,CNE2,C666-1,and Hone-1 cells

CNE1、CNE2、C666-1和Hone-1细胞的放射生物学特性测定