| 释义 | 
             
                density of free electrons
                
            自由电子zì yóu diàn zǐ 
 free electron免费miǎn fèi 
 free of charge; cost free; free; gratis免票miǎn piào 
 free of charge, free ticket轨道电子guǐ dào diàn zǐ 
 orbital electron, planetary electron堆密度duī mì dù 
 bulk density骨密度gǔ mì dù 
 BMD(bone mineral density)纬密wěi mì 
 picks per inch; weft density孤对电子gū duì diàn zǐ 
 lone pair electrons正电子zhèng diàn zǐ 
 positive electron; antielectron; positron免税miǎn shuì 
 tax exemption; duty free; free of tax堆积密度duī jī mì dù 
 stacking density; bulk density能量密度néng liàng mì dù 
 energy density; capacity density下流场所xià liú chǎng suǒ 
 free and easy免于miǎn yú 
 be free of电子diàn zǐ 
 electron功率谱密度gōng lǜ pǔ mì dù 
 PSD(power spectrum density); power spectral density兆电子伏特zhào diàn zǐ fú tè 
 Mev(maga electron volt); million electron volt密度mì dù 
 consistency, density疏密shū mì 
 density, spacing逍遥的xiāo yáo de 
 free; unfettered自由能zì yóu néng 
 free energy奉送fèng sòng 
 give sb. free, offer as a gift捝tuō 
 free of; extricate; miss; omit; fault出于自愿chū yú zì yuàn 
 of one's own free will免付运费miǎn fù yùn fèi 
 carriage free
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