永久齿

From a preventive and interceptive viewpoint, when a child's dentition is a Class I relationship before the primary second molars are lost, so that the space derived from mesial drift and diastemata is available, it is likely that emerging permanent teeth will assume correct alignment.

由预防性与阻断性的观点而言，当小病人在第二乳臼齿脱落之前的齿列是一级咬合关系时，如此空间可由近心倾斜门齿间隙所获得，而将来的永久齿是可得一正确的排列。

If other people in the picture are genuinely smiling, prepare for your frozen-faced grin to be immortalized.

如果照片中的其他人都率真地微笑着，你的那张刻板脸最好也能露齿而笑，让人永久回味。

Scientists have traced this behavior to hormones in the rodent's brain, which triggers lasting bond formation and increased aggression toward potential home wreckers

科学家们曾经追踪啮齿动物脑中的荷尔蒙，来解释它们的这种行为：触发它们永久结合的形成物和对潜在家庭毁灭者的攻击。

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。