We speculated that force be key to the elevation of bone IGF-I level. And IGF-I was an important factor to bone longitudinal growth.
本研究结果提示运动中下肢骨承重及受力大小与其纵向生长有关，运动可引起骨组织igf - I水平升高，骨中igf - I水平可能是影响骨生长的重要因素。
A new spiral trumpet interchange has such advantages as dealing with the large elevation difference, increasing the ramp length, reducing the longitudinal, saving land and so on.
一种新型螺旋式喇叭形互通立交具有克服大高差、增大匝道长度、减少纵坡、节约用地等特点。
A new spiral trumpet interchange has such advantages as dealing with the large elevation difference, increasing the ramp length, reducing the longitudinal, saving land and so on.
一种新型螺旋式喇叭形互通立交具有克服大高差、增大匝道长度、减少纵坡、节约用地等特点。
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