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1·Being a more serious defect, transverse crack on slab surface is very harmful to slab production and quality.

铸坯表面横向裂纹是连铸坯较严重的缺陷，其对铸坯的生产和质量危害很大。

2·The stability of the periodic motion decreases as the depth of the transverse crack on the rotating shaft increases.

裂纹深度的加大降低了系统周期运动的稳定性。

3·Though this text is the research on the transverse crack in the crankshaft, but the method and the conclusion should have reference value to other scholars.

本文虽然研究的是曲轴上的横向裂纹，但是研究所采用的方法和所得出的结论对其他的学者的研究应该是参考价值的。

4·The transverse crack is one of the most serious defects in the continuous casting slab and it has much greater adverse influence on the quality of the CC slab.

铸坯上的横裂纹是连铸板坯上较严重的缺陷之一，对铸坯质量影响较大。

5·Main research content including: 1 Have studied a same diameter shaft, study how to make use of the change of natural frequency to discern the transverse crack.

本文主要的研究内容包括：1以最简单的等直径光轴为例，研究了利用固有频率的变化来识别光轴上横向裂纹的可行性。

6·The present paper analyzes the influential factors for the transverse crack in the CC slab and puts forward the control measures. Better results have been achieved.

分析了含铌钢铸坯横裂纹的影响因素，并提出控制措施，取得良好效果。

7·Local strain concentration in angle-ply lay caused by transverse crack of circular lay in composite pressure vessel was studied by means of advanced shear-lag method.

利用改进的剪切滞后法，研究了组成纤维缠绕压力容器中的环向层的横向开裂而在纵向层中引起的局部应变集中。

8·Expansion joint: to meet the deformation of foundation, expansion and construction requirements play, prevent play a change in temperature in transverse crack produces.

伸缩缝：为适应地基变形，管身伸缩及施工要求，防止管身在温度变化时产生横向裂缝。

9·The research results showed that the slab surface temperature dropping into the third brittle zone played an important role in causing transverse crack formation ofm...

研究表明，铸坯表面温度落入钢的第三次脆性温度区是造成铸坯表面横裂的一个重要原因。

10·The preventive maintenance sections are divided by using dynamic cluster method and three indexes including rutting depth, transverse crack length and skidding resistance.

采用车辙深度、横向裂缝长度和路面抗滑性能指数三指标，使用动态聚类法，划分预防性养护路段。