The support rollers are core parts of the belt conveyor. Its turn resistance parameters are important index of which reflect work function of the support rollers.
托辊是带式输送机的核心部件，其转动阻力参数是反映托辊工作性能的重要指标。
The core function is to derive the original work into tangible chain evidence as the reference material of judicial practice through digitization the thorough work process and the result.
其核心功能是：通过数字认证方式，见证创作过程和结果，将原创作品作为证据固化保全，形成严谨的证据链，以作为司法采信的依据。
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