Wet shotcrete, including wet steel fiber shotcrete and wet plain shotcrete, has been adopted for the temporary and permanent lining of Qinling Railway Tunnel and good results have been obtained.
秦岭隧道采用了湿式喷混凝土（包括湿喷钢纤维混凝土和湿喷素混凝土）进行初期支护和永永支护，取得了良好的效果。
What's more, with the light power obviously intensifying and tunnel noticeably increasing, fiber nonlinearities have become a mainly important limitation imposing on systems.
但是，随着光纤中信道数的增多、光功率的增加，已使光纤非线性效应成为影响系统性能的主要因素。
Taking scalar wave equation and tunnel effect for example, the similarity of fiber optics to quantum mechanics was shown.
以标量波动方程和隧道效应为例子，说明纤维光学中波动分析与量子力学方法的相似性。
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