impact melt 中文意思是什麼
impact melt
解釋
沖慧融物-
Servo control computer system / microcomputer universal testing machines, ozone tester, compression flexometer, computer hdt / vicat tester, digital impact tester, melt flow indexer, moving die rheometer, mooney viscometer, lamination of pvc plastic press tester
伺服控制電腦系統微電腦式拉力試驗機，耐臭氧機，橡膠壓縮生熱試驗機，塑料用維卡熱變形，數位沖擊試驗機，塑膠熔體流動速率機，無轉子密閉膜腔硫化儀，門尼黏度試驗機等等。 -
Scientists know that spa must be older than any other lunar basin, and the oldest of the basins that can be reliably dated from impact - melt samples is mare serenitatis, which is estimated to be 3. 87 billion years old
科學家知道spa盆地必定比其他所有月球盆地古老，而目前能由撞擊熔融物樣本確實定年的最古老盆地是澄海，估計其年齡為38 . 7億年。 -
Radioisotope dating of the impact - melt samples ? rocks that melted when an asteroid or comet struck the moon, therefore revealing when an impact occurred ? shows that all these basins formed in a narrow interval between 3. 9 billion and 3. 8 billion years ago
利用放射性同位素為撞擊熔融物（在小行星或彗星撞擊月球時熔化的巖石，因此它們能顯示撞擊發生的時間）定年，顯示這些盆地都在39 ~ 38億年前一個很短的時間內形成。
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