搜索 - 科创

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手头有一个php识别验证码的class，用模板特征值对比方式的（csdn里面叫ugg的写的），我修改来修改去，只能达到成功二值化，但是不能正确识别，因为不知道怎么人工建立特征值并且输入到模板文件里面，...

在市场销售的各种残余气体分析仪中，基于四极杆质量分析器的RGA普遍要求工作压力低于E-4Torr，以830/835VQM为代表的离子阱RGA要求工作压力低于E-5Torr。这意味着在高于此压力的工况下...

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