波导参数的选择是设计和制造高质量的平面波导器件的关键。
The selection of the parameters of waveguide is the key to design and fabricate a high quality waveguide devices.
并在对其中关键技术和器件的选择进行分析的基础上，重点分析了如何实现传统模拟变送器向HART协议智能变送器的改造。
On the basis of analysis on the selection of critical technology and device, the retrofit of traditional analog transmitter into HART transmitter is analyzed emphatically.
进一步分析该WDM器件制作过程中诸如记录材料选择、写入光路及曝光时序的确定等关键技术环节。
The pacing technology in making the WDM device such as selecting record material, making sure recording geometry and exposure time are analyzed further.
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