filament

a thin wire (usually tungsten) that is heated white hot by the passage of an electric current

一种细线（通常是钨丝），通过电流白热化

a threadlike structure (as a chainlike series of cells)

线状结构（如一系列链状细胞）

filum

the stalk of a stamen

雄蕊的柄

a very slender natural or synthetic fiber

纤细的天然或合成纤维

fibril

strand