| 单词 | milliarcsecond | 
| 释义 | Definition of milliarcsecond in English:milliarcsecondnoun 
 Origin1970s; earliest use found in Nature: a weekly journal of science. Definition of milliarcsecond in US English:milliarcsecondnoun 
 Origin1970s; earliest use found in Nature: a weekly journal of science.  | 
	
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