单词	加拿利草
释义	同Canary-grass
随便看	optical test optical testing optical testing and workshop techniques optical testing instrument optical testing techniques optical texture optical theodolite optical theorem optical-thermal model optical thermometry optical thickness optical thickness of the atmosphere optical thin film optical thin film deposition optical thin films optical throw optical thyristor optical time-division optical time division multiple access optical time division multiplexing optical time domain feflectomertry optical time domain feflectomertry (otdr) optical time domain feflectrometry for attenuation measurement optical time domain feflectrometry (otdr) for attenuation measurement optical time domain multiplexing