输送代
Conveying agent
以上为机器翻译结果，长、整句建议使用 人工翻译 。
综合分析了带式输送机托辊的失效机理，介绍了新一代塑料托辊的基本性能，指出托辊的发展趋势。
Failure mechanism of idler was analyzed comprehensively. Major properties of a new type plastic idler were introduced. The development trend of idlers was pointed out.
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