First,the high-voltage(HV) test was performed to assure its HV-stability up to 11 kV(125 kV/cm) and to determine the dark rates of the detectors.
测试结果证明,系统的本底计数率分布在0。
The background count of the detector is 4～6 counts 1 min.
探测器的本底计数率为4―6脉冲1分。
low background pulse counting assembly
低本底脉冲计数装置
The Intrinsic Count Rate Test For SIEMENS LSO Scintillator Detectors PET/CT
SIEMENS LSO晶体PET/CT的本底计数测试
The overwhelming loss in counting efficiency occurs during the scintillation process itself.
绝大多数计数效率的损失出现在闪烁过程本身。
Many popular methods in experimental designs are only for the efficiency which can be calculated by optimizing some criterion function under a relevant mathematical model.
本文将探讨试验设计的基本原理，解释和研究到底什么是试验设计的效率？
On the People-oriented and Application-preference Teaching of the Course Probability Theory and Mathematical Statistics
以人为本,以用为准谈《概率论与数理统计》教学
Counting Rate Metre
计数率测量器,计数表
Returns the logarithm of a number to a specified base.\0
以指定的数字为底，计算参数的对数。\0
auto-log digital power meter
自动对数数字式功率计
portable linear ratemeter
携带式线性计数率计
According to the radiation-optical quality of volcanic ash we calculated the parameter of radiation-optic.
本文根据火山灰粒子的辐射光学特性,计算了火山灰粒子和平流层本底的辐射光学参数。
At present the fault tree or event tree method is generally applied to calculate the probability of ship grounding, and the certain probability is used to represent the failure probability of basic event.
目前，计算船舶搁浅的概率时常采用故障树和事件树方法，以确定的概率数表示底事件的发生概率。
Fundamentals and application by high resolution gamma spectrometry,without the? influence of sample treatment???
基本原则对不经过样品处理的高分辨率γ能谱法计数测量的应用
This paper gets the frequency stability of a sine wave using a digital method.
本文实现了利用数字方法计算正弦波的频率稳定度。
The Astrale 8 is the standard for wired speed and cadence, now with a larger display and new design.
本款码表是标准的有线速度和蹬踏频率码表，大数字显示，新设计。
Forecasting Financial Volatilities with Sample Quantiles:The Conditional Autoregressive Quasi-range(QCARR)Model;
基于样本分位数的波动率估计：条件自回归拟极差模型
Estimating Sample Size and Penetrance Parameters for Case-Control Design of Candidate-Gene Associations
病例对照分析法样本容量及基因外显率参数的估计方法
"In its basic form, it is calculated as the ratio of the accounting profit generated by an investment project to the required capital outlay, expressed as a percentage."
其基本形式计算为投资项目所产生的会计利润与所需资本费用的比率，用百分数表示。