高强度钢（100，000防扩散的最低收益率）活塞杆有一个理由，打磨，表面镀铬。
The high strength steel (100,000 psi minimum yield) piston rod has a ground, polished, and chrome plated surface.
磷扩散层还充当用于提升电压的后表面场 以及具有低电阻率的后接触部。
The phosphorus-diffused layer also serves as a back surface field to raise the voltage and a back contact with low resistivity.
给出了利用渐近解公式，由模有效折射率的测量值确定波导表面折射率和扩散深度的方法。
A method is given for determining the parameters of a diffused waveguide from the observable values of mode efficient index by using the asymptotic solution equations.
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