本文介绍了几种测量光纤光栅波长的方案及其工作原理，对各自优缺点做了介绍。
Many kinds of fiber grating-pair referencing methods for measuring fiber grating Bragg wavelength shifts are introduced in the paper, and including their respective advantages and shortcomings.
这几种散热方案各有优缺点，具体应用需根据工业电源的成本及应用环境等各方面的因素来选择性价比最高的方案。
These resolutions have their advantages under costs and application consideration, so it is important to choose the highest performance-to-price ratio one.
分析了国内糠醛精制装置几种主要抽提系统工艺流程的优缺点，并提出优化流程方案。
The paper analyses the advantages and disadvantages of the technological process in some domestic main furfural refining extracting systems, and puts forward the optimization on the process plan.
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