primary opening

This article introduced the primary action of opening teaching laboratory and some achievements in experimental teaching in Nanjing university of information science and technology.

文中介绍了南京信息工程大学教学实验室开放工作的初步做法以及在实验教学中取得的成果。

A simplified mould structure with double primary runner mounting on injection machine with double jet mechanism provides coupled runner opening which keeps pressure from plastic molten mass in balance and can evidently diminish elastic bending de ˉ flection of long cores.

介绍双主流道模具及注射机双喷嘴机构能在模具结构简单的前提下，提供成对浇口，使长型芯受到的塑料熔体压力保持平衡，明显地减少弹性弯曲变形。

Since the appearance of the athletes is a focus of the opening ceremony, an eye-catching color like red is a top choice, especially since it is the primary shade in China's national flag and also symbolizes energy, passion and joy in traditional Chinese culture.

由于运动员的出场是开幕式的一个重头戏，像红色这样引人注目的颜色是首选，尤其红色还是中国国旗的主要色调，也是中国传统文化中能量、激情和欢乐的象征。

It is of great significance to regard the basic economic system at the primary stage of socialism of our country as the economic basis at present stage so as to promote reform and opening, development and progress in every cause.

把我国社会主义初级阶段的基本经济制度作为现阶段的经济基础，对推进改革，促进各项事业的发展进步，都具有十分重要的意义。

The opening speech of the first English Festival of Guihua primary school!

桂花小学首届英语文化节开幕演讲稿早上好！