characteristic and usage 特点和用法
By analyzing capability and characteristic of tyres, this paper introduce some methods of reasonable selection and usage of tyres of mining vehicle equipment, so that improve its service life.
通过分析轮胎的性能特点，介绍了矿山无轨设备轮胎的合理选择方法，从而达到提高轮胎使用寿命的目的。
Introduces the operating principle, the product structure characteristic of brushless rheostat starter and usage state in the Bailong coal mine preparation plant.
介绍了无刷变阻起动器的工作原理、产品结构特征，以及在白龙矿洗煤厂的使用情况。
This paper described the function and basic demand of koji making materials, characteristic and requirement of usage of general materials and so on.
该文叙述了制曲原料的基本要求、作用，常用制曲原料的特性等。
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