Here is Father's Day Gratings from your granddaughter.
孙女在此向您问候，父亲节快乐！
Thus, the studies on theory and application of fiber gratings become very important.
因此，光纤光栅的理论和应用研究具有重要的实际意义。
Grating replication is an effective way to low cost and increase production of gratings.
光栅复制是降低光栅制造成本，提高产量的一条有效途径。
The design principle and the fabrication process of color separation gratings are studied.
介绍了色分离光栅的设计原理，并对其制作工艺进行了研究。
"You can make incredibly sophisticated diffraction gratings out of glass or plastic," he said.
“利用玻璃或塑料也能造出不可思议的精密分散格来，”他说。
“You can make incredibly sophisticated diffraction gratings out of glass or plastic, ” he said.
“利用玻璃或塑料也能造出不可思议的精密分散格来，”他说。
“You can make incredibly sophisticated diffraction gratings out of glass or plastic, ” he said.
“利用玻璃或塑料也能造出不可思议的精密分散格来，”他说。
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