• 对中的三种样品是由一些具有已知核素比活度标准物质标准物质构成一种活度未知

    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.

    dict.cnki.net

  • 田表表土125I活度时间下降到第60天田水中125I活度下降只占引入量019%;

    The specific activity of 125I in paddy water and topsoil decreased with time. On the 60th day, the specific activity of 125I in paddy water reduced to 019% of the initial.

    dict.cnki.net

  • 结果:不同产地不同品种进口花岗岩石材样品中天然放射性核素活度普通建筑材料较大差别

    The specific activities of natural radionuclides in import granites of different producing area and different varieties have biggish differences with those in normal building materials.

    dict.cnki.net

  • 结果:相同条件下3 2子集重建图像活度16子集接近真实

    Results: The activity of the hot lesion at 32 subset is closer to actual value than that at 16 subset.

    dict.cnki.net

  • 建立了CME有限扩散理论模型引入了活度系数扩散系数校正因子动力学参数

    The finite diffusion model of CME was established, the activity coefficient ratio, the diffusion coefficient correction factor and the kinetic parameter were introduced and evaluated.

    dict.cnki.net

  • 本文介绍(232u)示踪同位素测定岩石土壤水体同位素岩石同位素活度方法

    This paper presents a determination method of specific activity for uranium isotope in rocks, soil, water and thorium isotope in rocks using 232u as a tracer isotope.

    dict.cnki.net

  • 通过试验获得了实用转换系数据此,可以求出每节比活度

    Useful conversion coefficient is obtained by test, and therefore axial distribution of cobalt target specific activity is calculated.

    dict.cnki.net

  • 通过试验获得了实用转换系数据此,可以求出每节比活度

    Useful conversion coefficient is obtained by test, and therefore axial distribution of cobalt target specific activity is calculated.

    dict.cnki.net

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定