It also shows that the transmission coefficient changes with the diameter of aperture.
同时也研究了透过率有效系数随孔径变化的情况。
The quantity in relation to the coupling efficiency of an optical fiber:lasing mode, divergence angle, numerical aperture, focal diameter and precision optical fiber coupler are discussed.
围绕光纤耦合效率相关的量：激光模式、发散角、数值孔径、焦斑直径、精密光纤耦合器等问题进行了讨论；
The longer the vessel molecule is, the smaller the aperture is, the shorter the vessel molecule is, the bigger the diameter is, the length of the fiber cell is longer.
纤维分子长度普遍大于导管分子长度，而纤维分子的口径也普遍小于导管分子的口径。
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