Dense wavelength division multiplexing (DWDM) is an advanced and maturefiber optic transmission technique.
波分复用(DWDM)技术是一种比较先进且相对成熟的光纤通信技术。
2
Mature nuts ovoid or ellipsoid, shell thickness, fiber, endocarp hard.
成熟的坚果卵形或椭球形，外壳厚，纤维质，内果皮硬。
3
Applying the classical theory into the signal disposal of the fiber Bragg grating sensors is very great significance for developing the mature fibre technology product.