光纤衰减 Traditional 光纖衰減 guāng xiān shuāi jiǎn 🔊 optical attenuation + Keep this word Meanings guāng xiān shuāi jiǎn 光纖衰減 optical attenuation Its characters 光guānglight; ray (CL:道[dao4])HSK 4纤xiānfine衰shuāito decay; to decline; to wane减jiǎnto lowerHSK 4