皮米
皮米（符号 pm，英式英文：picometre、美式英文：picometer）是长度单位，1皮米相当于1米的一兆（即一万亿）分之一, 即10米。有时在原子物理学中称为微微米（micromicron）
picometre
英汉-汉英词典
n. 皮(可)米,微微米,百亿分之一米
词组 | 习惯用语
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- cometary adj. 彗星的；彗星似的
- isometric adj. 等大的,等容积的
- econometric adj. 计量经济学的
- photometric adj. 光度计的；光度测定的
picometre 皮(可)米; 微微米; 百亿分之一米;
网络短语:
Picometre 微微米
中文百科
英语百科
Picometre 皮米
![A simplified representation of a helium atom, having an estimated (calculated) diameter of 62 picometres[1]](/uploads/202502/02/Atom.svg0741.png)
The picometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: pm) or picometer (American spelling) is a unit of length in the metric system, equal to one trillionth (i.e., /1,000,000,000,000) of a metre, which is the SI base unit of length. It can be written in scientific notation as 1×10 m, in engineering notation as 1 E−12 m, and is simply 0.000,000,000,001 m.
近义、反义、联想词
近义词
n.metric linear unit
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