Bone development becomes 2 -3 years earlier

时间：2007-12-11 07:37:15

（单词翻译:单击）

Chinanews, Beijing, December 10 – Due to the improved living conditions and the change of environment, the starting age of bone development of Chinese youths has become 2-3 years earlier than in the 1960s.

 

The information was disclosed in a research paper on bone age identification of adolecents, written by Professor Zhu Guangyou, who has studied 1,897 young Chinese aged1 between 11 and 21, from Henan, Zhejiang and Hainan provinces. Zhu took X-ray pictures of the six big joints2 in their bodies to check the 24 indexes of bone development.

 

Documents show that the closing of epiphysis in the palms started the age around 18 in the 1960s, and the ossification3 of the connection between the collarbone and sternum of boys started around the age of 18 -20 at that time. The age of the complete closing of the epiphysis of the lilac crest4 of boys was around 20 – 25.

 

Zhu’s research shows that the age of closing of the epiphysis in the palms of boys today is around 16, and that of girls is around 15. The ossification of the connection between the collarbone and sternum of boys begins as early as they are 15 years old, and the complete closing of the epiphysis of the lilac crest of boys can be found on boys aged around 18.

 
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1 aged 6zWzdI     
adj.年老的，陈年的
参考例句：
  • He had put on weight and aged a little.他胖了，也老点了。
  • He is aged,but his memory is still good.他已年老，然而记忆力还好。
2 joints d97dcffd67eca7255ca514e4084b746e     
接头( joint的名词复数 )； 关节； 公共场所（尤指价格低廉的饮食和娱乐场所） （非正式）； 一块烤肉 （英式英语）
参考例句：
  • Expansion joints of various kinds are fitted on gas mains. 各种各样的伸缩接头被安装在煤气的总管道上了。
  • Expansion joints of various kinds are fitted on steam pipes. 各种各样的伸缩接头被安装在蒸气管道上了。
3 ossification 8348529f12531f5f158f9ad93035e983     
n.骨化，（思想等的）僵化
参考例句：
  • Objective To study the mechanism of ossification of yellow ligament. 目的为研究黄韧带骨化致椎管狭窄的机制打下基础。 来自互联网
  • Conclusion. Dural ossification is a common finding in OLF. 结论：硬膜骨化是OLF常见的表现。 来自互联网
4 crest raqyA     
n.顶点；饰章；羽冠；vt.达到顶点；vi.形成浪尖
参考例句：
  • The rooster bristled his crest.公鸡竖起了鸡冠。
  • He reached the crest of the hill before dawn.他于黎明前到达山顶。

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