求翻译：通过选择合适的蓝色LED芯片与合适的黄色荧光粉，完成白光LED的结构设计，并对LED芯片和荧光粉的激发、发射光谱进行测试，计算颜色坐标，同时研究荧光粉薄膜的涂敷工艺。是什么意思？

By selecting the appropriate blue LED chip and yellow phosphor suitable to complete the structural design of white LED, and LED chips and phosphor excitation and emission spectra for the test, calculate the color coordinates, while the film of phosphor coating process .

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Through the choice appropriate blue color LED chip and the appropriate decadent luminous powder, complete white light LED the structural design, and to the LED chip and the luminous powder stimulation, the emission spectrum carries on the test, the computation color coordinates, simultaneously studi

By selecting the appropriate blue LED chip with a suitable yellow phosphor, complete the structural design of white light LED, and to test the LED chip and excitation of phosphor, ICP-AES, calculate color coordinates, and study of phosphor thin film coating process.

By selecting the appropriate blue LED chip and yellow phosphor suitable to complete the structural design of white LED, and LED chips and phosphor excitation and emission spectra for the test, calculate the color coordinates, while the film of phosphor coating process .