查询词典 sealed radioactive source

He added that there could one day be a useful outlet to the discovery - x-ray machines that would be cheaper and safer than conventional machines that require a permanent radioactive source and a highly trained technician for maintenance.

他补充说，也许有一天这个发现能派上用场――廉价安全的X光机，不象通常的X光机那样需要永久放射源，以及高度培训过的技工做维护。

In order to measure the mould level more quickly and accurately, the algorithms for real-time signal processing are developed to determine the pulse count rate, filter the signal and to compensate the decay of the radioactive source automatically.

为提高测量的统计精度和快速性，设计了信号实时处理算法测量信号脉冲计数率，进行信号滤波和放射源衰减自动补偿。

This paper introduces the advantages of ISOCS measurement method by efficiency calibration without a radioactive source , comparing with traditional measurement methods of environment samples.

ISOCS系统[1](In-SituObjectCountSystem)是由美国Canberra公司开发的现场物体计数系统，它能够在放射性剂量产生地，现场条件下直接进行γ能谱测量和分析。

A unit strength of a radioactive source equal to one million disintegrations per second .

放射性强度单位等于每秒百万次数衰变。

A sort of silicon diodes were irradiated by electron beam and 63Ni radioactive source, and their electrical capabilities were measured during the irradiation.

本工作采用加速器产生的不同能量电子束和63Ni源的β射线对硅基PiN结型器件进行辐照，在线测量了其电学输出性能。

Monitoring scope was divided to 3 zones including radioactive source, operating and denuded, all monitoring results were recorded and archived.

将监测范围划分放射源区、操作区和清洁区共3个区，监测结果记录存档。

A novel isotopic mould measurement system for molten steel level,composed of a radioactive source,a nuclear detector and a signal processing unit,is presented.

同位素检测是恶劣环境下测量液位的主要方法，本文介绍一种新型结晶器钢水液位测量系统，系统由放射源、核辐射探测器和信号处理单元组成。

Ray pinhole imaging system is a major approach to diagnose the radioactive source.

γ射线针孔照相系统是用于诊断γ射线源或X射线源图像的重要手段，它主要由厚针孔、闪烁体、微通道板像增强器和CCD相机等器件组成。

The detection efficiency was also obtained experimentally using radioactive source 60Co.

测出的线衰减系数是绝对值，成像只要求低分辨。然而，TGS有CT测量所没有的发射测量和图像重建的问题。

A soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands.

一种软质、银白色、放射性四价金属元素，同位素用作核反应能源，见于钍矿和独居石沙中。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"