optical baffle
... optical axis of symmetry 光学对称轴 optical baffle 光学隔板 optical balance 光学补偿; 光学天平 ...
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借助光学显微镜、扫描电镜等手段，对用埋铸法生产的T9815气轮机组隔板断裂部位的金相组织特征，宏观和微观断口形貌等进行了研究。
The microstructure characteristics, macro and micro fracture morphology of brittle broken embedded casting closure of T9815 turbines were investigated by means of metallographical examination and SEM.
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