Research shows that, in the embedded movement of drag anchors, the embedded anchor chain will display a profile with reversecurvature and the anchor will reach an ultimate embedded depth.
研究表明，拖曳锚嵌入运动中拖缆存在反悬链效应、锚板存在极限嵌入深度。
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X-ray examination revealed that there were 69 cases whose cervical vertebral physiological curvature became straight or reverse, or with certain degree of degenerative change.