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electron number
 electron number
avia. 电子数
| density
 … density, "
metrol. …密度;
 …density
metrol. …密度;
 density
avia. 场强
environ. 密度
hydroel.st. 重度

to phrases
electron number
avia. 电子数
electron number density
: 6 phrases in 4 subjects
Aviation2
Chemistry1
Multimedia2
Technology1