Strange as it might seem, this is the sound of the hottest material in the universe and an indication of what conditions will have been like just micro-seconds after the Big Bang.
看似很奇怪,这竟是宇宙中最热物质的声音,迹象表明它只存在于大爆炸后的微秒时间内。
The correlative circuit modules are used to design the quantitative indication system for crack depth on the surface of steel material.
用相关的电路模块设计了符合要求的金属表面裂纹深度定量标定系统。
Please give clear indication of Dimension, operating pressure material.
订货时请注明产品尺寸、操作压力及材质。
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