a. too small to be seen without an ultramicroscope
常见例句
1
v become dispersed as an aerosol v disperse as an aerosol s in the form of ultramicroscopic solid or liquid particles dispersed or suspended in air or gas
2
in the form of ultramicroscopic solid or liquid particles dispersed or suspended in air or gas
3
(virology) ultramicroscopic infectious agent that replicates itself only within cells of living hosts
4
n (virology) ultramicroscopic infectious agent that replicates itself only within cells of living hosts
