radiometric dating

radioactive dating

ph.1. 【美】放射性测定年代

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

Measurement of geologic time, as through isotopic radioactive decay.

地质年代测定通过放射性同位素衰变来测定地质年代

radiation-damage dating

辐射损伤年代测定法

beta radiography dating

射线照相法测定年代

automatic filter activity meter

过滤圃动放射性测定仪

The researchers used radiocarbon dating on22 pieces of microscopic charcoal found among Neandertal tools in fire pits in Gorham Cave.

研究者们使用放射性碳方法为在山洞中发现的22片木炭确定年代.

a chemical analysis used to determine the age of organic materials based on their content of the radioisotope carbon 14.

用放射性同位素碳14测定有机物年龄的化学分析。

Clinical Application of Serum β-AP Radioimmunoassay in Patients with Alzheimer Disease;

老年性痴呆病人血清β-AP放射免疫测定的临床应用研究

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

Review on Progress of Radioactive Well Logging Technology in 2000～2008

2000～2008年放射性测井技术进展述评

contact beta radiography dating

接触式射线照相法测定年代

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