... 速化accelerator 漂锡solder float 热应力测试thermal stress test ...
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PWB samples were subjected to the solder float test per MIL-P-55110 and then the PTHs were cross-sectioned.
印制板试样必须经过MIL—P—55110标准浮焊试验，然后对金属化孔进行剖视。
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