前倒

Three cross-sections were made through crown and gingiva of the model tooth. Curve functions of axial buccal crown and gingiva contour of each section were acquired by means of curve fitting, and the angle of emergence pofile was calculated, which represents the degree of undercut.

以下颌第二前磨牙为研究对象，在牙列模型上通过牙冠部、牙龈作3个纵断面，用曲线拟和的方法得到每个断面的牙齿轴面外形及相应牙龈外形的曲线方程，以此分析两者之间的关系并计算牙冠起始外形角度，即倒凹程度的大小。

Then he ran out of his room and fell prostrate on the floor of the antechamber.

接着他走出自己的卧室，倒在前房的方砖地上。

When they prostrated themselves in front of the Hall of the Arhats, one of the Arhat statue suddenly dropped to the ground.

当他们来到罗汉堂前跪拜时，突然一尊罗汉倒在地上。

Revolution, can be move forward and backward, a good solution for material discharging.

旋转角度360度，可前翻、后仰，帮您解决任何倒料之角度问题。

Hermione Stupefies him, and he falls headfirst into the bell jar, his head turning into a baby's.

赫敏击昏了他，他头朝前地倒进了钟形玻璃罐，他的头变成了婴儿的头。

He fast-forwards through the two-hour finale of Fox's season-long talent show until the anxious moments before the big announcement: Bo Bice or Carrie Underwood, the long-haired southern rocker or the long-haired country ingenue.

他快速的向后倒着那两个小时福克斯本季才智节目的带子，直到在公布前那个让人盼望的时刻：Bo Bice 或者 Carrie Underwood，长发的南方摇滚歌星或者长发的乡村女孩。

METHODS: 27 maxillary second bicuspid teeth with two canals and one isthmus were divided randomly into 3 groups with 9 in each.

27颗根管结构为一个峡部连接2个主根管的离体上颌第二前磨牙，随机均分为3组，分别采用3种处理方式进行倒预备。

He's fallen at the semi-final hurdle five times, but after so much heartbreak in major competitions, Bolo Zenden has at last made it to a final- injury permitting.

他曾经5次倒在半决赛的门前，但经历了这么多在重大赛事的难忍悲痛之后，保罗·登最终还是成功来到一场决赛前——伤病终于对他放行了。。。

He's fallen at the semi-final hurdle five times, but after so much heartbreak in major competitions, Bolo Zenden has at last made it to a final - injury permitting.

他曾经5次倒在半决赛的门前，但经历了这么多在重大赛事的难忍悲痛之后，保罗·岑登最终还是成功来到一场决赛前——伤病终于对他放行了。。。（个人觉得很形象哈。。。

The gravity revetment structure of inland waterway was optimized by enlarging the fore－ toe of bottom slab, increasing the cantilever length of the back heel, reducing the thickness of bottom slab, deepening the depth of fore－ toe, improving the reverse filter and setting block stone.

通过加大底板前趾、后踵悬臂长度，减薄底板厚度，加深前趾深度，改进倒滤棱体，增设摆石等措施，使内河航道重力式护岸结构得到了优化。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。