The visual inspection was carried through the crack, then the macro and micro observation of the crack, and the microstructure and the hardness of the shell were studied.
对钛合金壳体裂纹进行了外观检查，对其裂纹断口进行了宏、微观观察，并对其组织和硬度进行了检查。
This is ideal optical instrument for micro observation in metallographic structure and surface morphology. It is suitable for research in metallography, mineralogy, precision engineering, etc.
适用于金相组织及表面形态的显微观察，是金属学、矿物学、精密工程学研究的理想仪器。
At the present time digital holography is widely used in shape measurement, distortion shaking measurement, micro observation, information encryption, particle measurement, digital watermarking et al.
目前数字全息技术已经广泛应用于形貌测量、变形振动测量、显微观测、信息加密、粒子场测量、数字水印等领域。
At the present time digital holography is widely used in shape measurement, distortion shaking measurement, micro observation, information encryption, particle measurement, digital watermarking et al.
目前数字全息技术已经广泛应用于形貌测量、变形振动测量、显微观测、信息加密、粒子场测量、数字水印等领域。
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