凹陷深度越大，初始轴向拉伸力的存在对立管的影响越大。
The axial tensile had greater influence on the ultimate strength of the dented riser as the depth was deeper.
结果表明：最大凹陷深度的增加使立管的疲劳寿命大大减少；
The results showed that:fatigue life significantly reduced as the maximum depth of dent increase;
侧线器官的分布密度、大小和凹陷深度明显与周围表皮的厚度和不同部位有关。
The density, size, sunk depth of the lateral line organs directly correlated with surrounding epidermal height and regions.
结果表明：和楔形凹陷损伤立管一样，随着凹陷深度的加大，立管的极限强度明显减小；
The results showed that: similar to the wedge dented riser, ultimate strength reduced significantly as the maximum depth of the spherical dent increased;
最后分析在恒幅疲劳载荷作用下，不同的最大凹陷深度和凹陷影响区域的长度对楔形凹陷立管的疲劳寿命的影响。
Finally, the effect of different maximum depth and length of the dent on the fatigue life of dented riser under the constant amplitude fatigue loads was studied.
分析了凹陷深度、初弯曲、长细比和截面径厚比等参数对杆件极限承载力的影响，讨论了上述参数对荷载-轴向缩短关系的单独影响和综合影响。
The following parameters, dent-depth, initial crook, slenderness ratio and diameter-thickness ratio, are considered and their influence on ultimate bearing capacity is analyzed.
结果表明，对常见的W型单模光纤，只要中心凹陷的深度和宽度均小于50%，就能保证它的传输特性不因中心凹陷的影响而发生较明显的变化。
For typical W-type single-mode fibers, propagation characteristics will not show significant changes provided the width and depth of the central dip are less than 50%.
辽中凹陷沙河街组及部分东营组储层埋藏深度大及储层物性变化大的特点制约了中深层油气的勘探；
The exploration of mid-deep oil and gas is constrained mainly by reservoir petrophysical changes of deep Dongying and Shahejie Formations.
辽中凹陷沙河街组及部分东营组储层埋藏深度大及储层物性变化大的特点制约了中深层油气的勘探；
The exploration of mid-deep oil and gas is constrained mainly by reservoir petrophysical changes of deep Dongying and Shahejie Formations.
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