Some proposals for problems involved in experimental technique were put forward through resin matrix composite freely expanding ring experimental technique analysis.
通过树脂基复合材料爆炸自由膨胀环实验的分析，对实验技术中存在的问题提出了一些建议。
The expanding ring carries with it another great mystery, however: why wasn't this supernova seen 400 years ago when light from the initial blast should have passed the Earth?
关于这个正在膨胀的圆环，还有一个不为人知的秘密——400年前，当这颗超新星开始爆发，为什么地球上没人注意到？
This paper describes basic structures and working principle for the machine for cutting and expanding the wheel lock ring, showing the design concept about essential elements.
介绍挡锁圈扩切机基本结构及工作原理；机床的几个关键部位的设计构思。
This article has described expanding method for repairing the concave retaining ring caused by the hydraulic bulging.
详细介绍了用扩冲法对液压胀形出现凹形的护环进行修复的方法。
Reasons of causing shape defects of the retaining ring by hydraulic expanding and principles and methods of sizing the shape are briefly presented.
本文扼要介绍了护环液压扩胀时产生形状缺陷的原因及校正的原理与方法。
The colliding galaxies would have created a powerful density wave that would have swept out the material into an expanding ring, stimulating star formation.
碰撞的两个星系产生了强烈的密度波，把物质推到外侧的环形上，并激发了恒星的形成。
The colliding galaxies would have created a powerful density wave that would have swept out the material into an expanding ring, stimulating star formation.
碰撞的两个星系产生了强烈的密度波，把物质推到外侧的环形上，并激发了恒星的形成。
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