年青人

It is no doubt that shortsighted is a important problem between young person of our country.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

It's no doubt that shortsighted is a setious problem among the youth in our country.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

There is no dount that shortsighted is serious problem in the chinese young people.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

It's no doubt that shortsightedness of youth in our country is a much serious problem.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

It is no doubt that shortsightedness is a severe problem among the youth in our country.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

It's no doubt that shortsightedness becomes a severe problem in China's youth.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

There is no doubt that shortsightedness is a serious promblem among the young people in my country.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

There is no doubt that shortsightedness is a very serious problem among the Chinese youths.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

Without doubt, shortsightedness is a serious problem among youngsters in China.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

Shortsightedness is, undoubtedly, a serious problem for youngsters in our country.

毫无疑问，在我国年青人当中近视是一个很严重的问题。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。