1. 薄得近乎透明的
A filmy fabric or substance is very thin and almost transparent.

1. so thin as to transmit light

e.g. a hat with a diaphanous veil
filmy wings of a moth
gauzy clouds of dandelion down
gossamer cobwebs
sheer silk stockings
transparent chiffon
vaporous silks

Synonym: diaphanousgauzygauze-likegossamersee-throughsheertransparentvaporousvapourouscobwebby