By comprehensively analyzing grain size, sedimentary structure, heavy mineral, major and trace element of this core, we discuss material sources and sedimentary environment of it.
对该岩芯进行了粒度、沉积构造、重矿物和常微量化学元素等分析，并综合以上各种指标对岩芯的物质来源和沉积环境进行了详细的探讨。
The result shows that under bad working environment of rolling mills, this material of sealing element has steady and reliable performance.
结果表明，该密封件材料在轧机的恶劣工作环境下，性能稳定、可靠且寿命长。
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