Methods: Clinical data of 27 patients with colon trauma hospitalized during 1990 to 2004 were analyzed retrospectively.

方法对1990 ~ 2004年收治的27例结肠损伤的临床资料作回顾性分折。

youdao

Using Geographic Information System(GIS), the change of landscape pattern in Zhangjiajie National Forest Park during 1990—2000 was studied.

利用地理信息系统（GIS）技术，研究1990—2000年张家界国家森林公园景观格局的变化。

youdao

Mammalisn surveys, focusing on wild ungulate species, were conducted in an unprotected region of central Qinghai province called Yeniugou during 1990~1992.

作者于1990～1992年在青海省中部未受保护的野牛沟地区进行以有蹄类物种为重点的野生动物考察。

youdao

During 1990-92, eight rounds of premiers' talks produced a comprehensive deal - on paper.

CNN: From Foe To Friend?

When countries were classified in 1990 by their status in the United Nations Human Development Index (an index of income, literacy and health), high-development countries achieved robust and stable economic growth during 1990-98, with average growth rates of around 2.3% a year and with 35 out of 36 countries enjoying rising living standards.

ECONOMIST: By invitation

During the 1990 recession, a billionaire software entrepreneur told me that he stopped watching the news.

FORBES: Last Chance To See Lance