| 单词 | picometer |
| 释义 | picometer (extremely rare) n WORD FAMILY picometer USAGE EXAMPLESOne picometer is a small fraction of the width of a hydrogen atom. BBC(Feb 28, 2015) n a metric unit of length equal to one trillionth of a meter Syn|Hyper micromicron, picometre metric linear unit a linear unit of distance in metric terms |
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