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ejecta n.〔pl.〕 噴出物,廢物,渣。

ejection

There are things like burrows in some of the sediments found in layers above ( after ) the impact ejecta which can ' t easily be mimicked by a flood and imply many organisms survived the meteor impact to die off about 300 , 000 years later 在一些沖擊物中有類似洞穴的東西存在于沖積沉淀物的層面內,暗示了很多生物體經歷流水影響之后幸存到大約30萬年以后才消失。

They attacked different ecosystems in different ways on different timescales , ranging from days for reentering ejecta to months for dust in the stratosphere to years for sulfuric acid aerosols 它們以不同的方式與時間尺度影響不同的生態系,例如,噴出的碎片只要數天就會降回地表,平流層的煙塵要花數個月,硫酸雨霧則要數年。

This and the x - ray spectrum , which exhibits a high concentration of iron atoms relative to oxygen and silicon , convincingly show that the ejecta are the remains of an exploded white dwarf star 這幅圖連帶x射線光譜(顯示出了鐵相對氧與硅的高度集中)令人信服地說明,拋出的物質是爆發白矮星的殘余。

In the only other supernova remnant ( the vela supernova remnant ) where such features have been observed , the crescent shapes are clearly produced by ejecta fragments 其他超新星遺跡中,只有一個(船帆座超新星遺跡)觀測到了這樣的特征,可以確信,該遺跡的新月形外觀是拋出的碎片造就的。

If they are correct , it ' s possible , says lawton , for fossils of organisms that were killed by the impact event to be reworked out on the ancient sea floor and laid down on top of ( after ) ejecta 如果他們是正確的,勞頓說,生物體的化石受沖擊影響而毀壞,出現在古老的海底的噴出物中。

The clear separation of the shocked matter and the heated ejecta in the chandra image allowed astronomers to determine the mass and composition of the ejecta 在錢德拉的照片上,激波擾過的物質與被加熱的拋出物之間明顯的分隔讓天文學家可以定出拋出物的質量與組分。

First came the impact , which sent a rain of molten rock into the air and formed an “ ejecta “ layer for hundreds of miles around 首先是沖擊,使熔融巖石沖進空中并且在數百英里周圍形成一個噴出物的層,然后變成海嘯,勞頓說: “海浪沖向熔融巖石并且把它帶回到深水“ 。

In the case of n132d , the horseshoe shape of the remnant is thought to be due to shock waves from the collision of the supernova ejecta with cool giant gas clouds 在n132d中,遺跡的馬蹄鐵狀外觀據信是因超新星拋出物與巨大的冷分子云相撞所致的。

The expanding ejecta drive an outward - moving shock wave that races ahead of the ejecta into the interstellar gas ( bright outer rim ) 膨脹的拋出物驅動著外行激波,領先于拋出物沖入星際氣體(明亮的外緣) 。

The pressure behind this shock wave drives an inward - moving shock wave that heats the ejecta , seen as the aqua cloud 激波后的壓力驅使內行激波加熱物質,也就是圖中淺綠色的云團。