集合描述 meaning in Chinese
set description
Examples
- These collections describe all of the required columns
这些集合描述所有必需的列。 - The aim which rough set theory study is a aim set that is described by a muti - value attribution . for every aim and its attribution , there has a value as its described charter aim , attribution and its described charter are the three basic factors to expression decision problems
Rough集的研究对象是由一个多值属性(特征，症状，特性)集合描述的一个对象集合，对于每个对象及其属性都有一个值作为其描述符号，对象，属性和描述符是表达决策问题的3个基本要素。 - It is based on the principle : under a number of angles , the x - ray attenuation in a cross section of a human body is measured by detector resulting in a set of profiles . this set of profiles is called the radon transform of the object in mathematics . the problem now is to reconstruct a two - dimensional image via inverting its radon transform
它所基于的成像原理是：人体的某个剖面在若干个角度上被x射线束照射，照射后x射线的衰减量被检测器记录下来，形成投影集合，数学上将这个投影集合描述为该剖面的radon变换，通过反演radon变换就能够重建剖面的二维图像。 - Computerized tomography ( ct ) is a typical non - invasive examination techniques in medicine , which can depict anatomical structures without damaging the human body . lt is based on the principle : under a number of angles , the x - ray attenuation in a cross section of a human body is measured by detector resulting in a set of profiles . this set of profiles is called the radon transfoim of the object in mathematics . the problem now is to reconstruct a two - dimensional image via inverting its radon transform
它所基于的成像原理是：人体的某个剖面在若干个角度上被x射线束照射，照射后x射线的衰减量被检测器记录下来，形成投影集合，数学上将这个投影集合描述为该剖面的radon变换，通过反演radon变换就能够重建剖面的二维图像。