针状体是从太阳的光球以每秒大约20公里向上,直径500公里的动态喷射物,这是在罗马梵蒂冈天文台的安吉洛·西奇神父在1877年发现的。整个色球层都布满了针状体。
细针状体 fine needles
色球针状体 chromospheric spike ; chromospheric spicule
针状体簇 cluster of needles
羽毛针状体 feathery needles
水泥针状体 Cement bacilluse
针状体束 rosette of needles
针状晶体 [晶体] acicular crystal ; needle shaped crystallite ; Needle crystal ; acicular needles
针状马氏体 acicular martensite ; needle type martensite
针状铸体 acicular cast iron ; acicular r cast iron
过去几年中,一种快速而短寿的新型针状体被发现。
A few years ago, a new kind of faster, shorter-lived spicule was discovered.
你脑中想象的正是活跃的太阳上数千根新生的针状体之一。
You are envisioning just one of thousands of young spicules on the active Sun.
新的发现很让人兴奋,但对针状体在大局上的重要性(这个问题),大家还是莫衷一是。
The new observations are very exciting, but the jury is still out on the importance of spicules in the big scheme of things.
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