下颌骨

AIM: To construct a three-dimensional finite element model of human mandibular alveolar atrophy, which uses to analysis the biomechanical characters of atrophic alveolar ridge.

目的：利用螺旋CT建立牙槽嵴萎缩的下颌骨三维有限元模型，用于萎缩牙槽嵴的生物力学分析。

METHODS: A model of residual alveolar ridge in mandible of a dog was made and CT scanned after 3 months.

构建犬下颌骨局部剩余牙槽嵴模型，3个月后行CT扫描。

OBJECTIVE: To heighten the alveolar ridge of mandible using implant-distraction apparatus, and to investigate the law of Smad7 in distraction osteogenesis.

目的：利用种植型牵张器增高兔下颌牙槽嵴，观察下颌骨牵张成骨过程中Smad7的表达规律。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。