flaw n. 1.裂缝。 2.瑕疵,缺点。 3.(使证件等因而失效的)缺陷。 a flaw in an otherwise perfect character 白璧之瑕,美德中仅有的缺点。 vt.,vi. 1.(使)生裂缝,(使)有裂纹。 2.(使)(证件等)因有缺陷而失效。 adj. -ed 有裂纹的;有瑕疵的;有缺陷的。 n. 一阵狂风;短暂的风暴。
Test method for surface flaws in tungsten seal rod and wire 密封钨丝和钨条表面裂纹的试验方法
Automatic detection and recogition of steel ball s surface flaws 钢球表面缺陷的自动检测与识别
Such inspection methods seek out surface flaws in materials 这样的检验方法可以找出原材料表面的瑕疵。
Surface flaw often occurs during manufactruring , and surface flaw has greater effect on tensile strength than interior flaw does 特别是在生产碳纤维过程中,容易产生表面缺陷;表面缺陷对抗拉强度的影响大于内部缺陷。
Shell body exterior surface flaw detection system belongs to the application research of intelligent detection technology . it is a kind of auto lossless detecting which applied computer image processing technique to realize high precision and high efficiency 弹体外表面疵病检测系统属智能检测技术的应用研究,是应用计算机图像处理技术,实现高精度、高效率的自动无损检测。
In this subject , a new method and technique that applied the error separation theory to test of the surface flaw of axis - like parts using eddy current is proposed for the first time . based on this method , a mathematical model of extracting the surface flaw of axis - like parts is established . then " an automation system for the eddy current examination of the surface flaw of axletree " is designed 本课题首次应用误差分离理论提出了对轴(孔)类工件表面缺陷进行涡流无损检测的新方法和新技术,建立了基于该方法的提取轴(孔)类工件表面缺陷的数学模型,并设计了“轴承滚子表面缺陷涡流自动化检测系统” 。
Liquid penetrant testing , eddy current testing and magnetic particle testing are mainly used in the detection of surface flaws and near - surface flaws , radiographic testing and ultrasonic testing are mainly used in the detection of inner defects , ultrasonic testing is also used in the detection of spheroidization quality of smooth surface castings , while vibration testing is used in the detection of spheroidization quality of rough surface castings 液体渗透检测、涡流检测和磁粉检测常用于检测铸件表面和近表面缺陷,射线检测和超声检测常用于检测铸件内部缺陷,超声检测可用于表面光洁铸件的球化质量的检测,振动检测则用于表面粗糙铸件的球化质量的检测。
Second , based on the theory of error separation , the mathematical model , which is used to extract the surface flaw of axis - like parts , is given briefly . third , the designs of hardware and software in the system are explained respectively . fourth , the models and algorithms for appraising the surface flaw of axis - like parts are established by the methods of pattern recognition and neural net 第一,本文论述了该课题研究的必要性及应用开发的价值:第二,简要介绍了基于误差分离理论建立起来的提取轴(孔)类工件表面缺陷的数学模型;第三,对该系统的硬件和软件设计分别进行说明;第四,运用模式识别和神经网络等方法建立轴承工件表面缺陷评判模型和算法,并给出了各种评判方法的比较。
Under the complex loadings , the surface flaws of large complex structures and the original defects of materials would initiate the propagation of micro three - dimensional ( 3d ) cracks , and result in catastrophic accidents . for the limitations of the traditional theories of two - dimensional cracks , the safety of actual structures containing 3d cracks cannot be guaranteed completely without the out - of - plane stress constraint 复杂应力作用下,宏观复杂结构表面加工质量和材料本身固有缺陷以及外来损伤等会引起三维裂纹的萌生、扩展,最终导致灾难性的破坏,而传统二维裂纹理论在解决实际三维裂纹问题时出现不足,无法完全保障结构安全。