The definition and reference point position of ASON E - NNI is studied.本文研究了自动交换光网络E-NNI 的定义、参考位置和E -NNI 业务调用配置方式.The level at the reference point is zero.参考点的电平是零.Uncertainty shifts the internal reference point upward.不...
表面淬火 或渗碳法应用十分广泛.The case - hardening or carburizing process is in wide use.在飞机制造中,渗碳法比其它方法用得更普遍.Casehardening is used more than the other methods in aircraft work.恰当的渗碳扩散与预冷保温是提高疲劳寿命的有效措施.Appropriate carbon - diffusion a...