Methods The authers computed the alarming lines and warning lines according to the baseline and judged the change of the birth defects.
方法根据基线数据制定报警线和警告线，然后判断出生缺陷的发生是否有增加或降低。
Through the research of the physical and mechanical properties of the self leveling mortar, The authers developed a super flowing agent.
通过流化剂组分对自流平砂浆的流平性能及物理力学性能影响的试验研究，研制出一种砂浆用的高效自流平流化剂。
Authers have studied the transformation processes of cold air over land in East Asia for eight cases which occurred in different months of 1981.
本文对1981年不同月份8次东亚冷空气活动的陆地变性过程进行了分析。
Authers visited four famous universities of aeronautics and astronautics in Russia, and understood some conditions about Russian aeronautical higher education.
作者有幸访问了莫斯科航空学院等四所俄罗斯著名航空航天院校，对俄罗斯的高等航空教育有了一些粗浅的了解。
Authers found out that there are particular responding regions in two kinds of fringe patterns. It will be a great help for judging orders to different kinds of fringe patterns.
发现在两种爆破条纹图上存在着特殊的条纹对应区域，它有益于更方便地进行几种条纹图的判读。
The authers consider that COPD in old people must be re-understood. And it was of great significance to measure the diameter of right inferior pulmonary artery to the diagnosis of senile COPD.
发现对肺气肿的X线诊断有新认识，观察和测量右下肺动脉横径宽度具有重要的临床意义。
The authers consider that COPD in old people must be re-understood. And it was of great significance to measure the diameter of right inferior pulmonary artery to the diagnosis of senile COPD.
发现对肺气肿的X线诊断有新认识，观察和测量右下肺动脉横径宽度具有重要的临床意义。
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