The delamination crack and its effect on the fracture of pipeline steel were investigated by drop-weight tear test(DWTT)at different temperature and micrograph analysis.
通过对管线钢不同温度的落锤撕裂试验和微观断口分析，研究了DWTT试样断口的分层裂纹及其对断裂的影响。
This study aimed to evaluate the effect of caries removal and clinical feature with Carisolv by using scanning electron micrograph, light micrograph, shear bond strength test.
本实验对伢典化学机械去龋法进行了扫描电镜、光镜、粘结效果、临床应用等研究，以评价伢典化学机械去龋法的疗效。
This study aimed to evaluate the effect of caries removal and clinical feature with Carisolv by using scanning electron micrograph, light micrograph, shear bond strength test.
本实验对伢典化学机械去龋法进行了扫描电镜、光镜、粘结效果、临床应用等研究，以评价伢典化学机械去龋法的疗效。
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