Tips about using Layer in Creo CDE 的可靠性模型: \[\lambda =\frac{4\times10^5 N V_a^3 C^{0.5} 2^{T_c-T_m/10}}{L_B V_r^2}\] http://www.cde.com/resources/catalogs/AEappGUIDE.pdf http://www.cde.com/resources/catalogs/cn/reliability.pdf