青春期

X-ray was used to check the development of their left carpal bones and the adolescent height spurt status was evaluated according to X-ay pictures and based on Grave's index.

结果：青春期女性的身高突增高峰主要发生在乳房开始发育的同时，但在9岁及以后的无性发育个体中也有部分个体进人了高峰期。

One evening,in the midst of dinner preparation,our 10 yearold daughter asked,Mom

一天晚上，准备晚餐时，我十岁的女儿问，"妈咪，什么是青春期？"

One evening,in the midst of dinner preparation,our 10 yearold daughter asked,"Mom my, what's puberty?"

一天晚上，在准备晚饭的时候，我们十岁的女儿问："妈妈，什么是青春期？"

Objective The purpose of the study was to determine the effect of the craniofacial contour development by Class II in adolescency.

目的：研究安氏II类错牙合畸形对青春期面部骨轮廓发育的影响。

Junior high school is such a period that the emotional development of the students is very unstable, the students are experiencing exquisite physiological and psychological changes of their adolescency.

初中阶段是青少年情绪发展极不稳定的时期，他们面临着青春期剧烈的生理和心理变化，家长对子女情绪智力的培养尤其重要。

But this is only a guess, there haven't been epidemiological or animal study on this aspect at home and abroad by now. So we design the assay to study whether ethephon can effect physiological and behavior development of rat in adolescency, and to discuss the corresponding mechanisms.

因此，我们设计这次动物试验，初步研究乙烯利能否对青春期大鼠的生理、行为发育产生影响，并探讨其作用的相关机制，从而为进一步研究乙烯利对青少年生长发育的影响及其环境危险度评价提供初步实验依据。

During the development of adolescency, the malformation in carniofacial of Class II patients were seriously.

安氏II类错牙合畸形患者经过青春期发育，使面部畸形程度更加严重。

The bone amount of the juvenile during the adolescency is affected by both genetics and environment factors,and genetics decides peak bone mount at 60% to 80%,although the results from genetic researches have not agree with each other.Environment factors also have a great effect on the development of the bone amount,such as the calcium intake,physical exercises,physical constitution and height,sex hormone level and so on.

青春期少年骨量受遗传和环境因素的共同影响，人体60%～80%的峰值骨量由基因即遗传因素所决定，目前大多数基因研究结果尚不一致；环境因素对骨量的影响因素也非常多，其中以钙摄入量、体育锻炼、体质量和身高、性激素水平的影响因素最大。

Key words: Angle's Class II malocclusion; adolescency; craniofacial contour

安氏II类错牙合；青春期；面部骨轮廓

They all stood up again as the screen flashed at them, showing them mechs and specs, and their eyes grew wider, their grins grew more and more adolescently evil.

当萤幕在他们闪现的时候，他们全部再一次站起来，显示他们 mechs 和详细说明书，而且他们的眼睛变得比较宽，他们的露齿笑变越来越青春期邪恶。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐