In this paper, the synthesis, structure, characteristic and usage of nylon 46 is introduced.
本文介绍了尼龙46的合成，结构、特性与用途。
The work principal? Structure characteristic and usage of ZX28 series stainless steel resistor are introduced, and some hope and suggestion on design development of new type resistors are gived.
主要介绍了ZX28系列不锈钢电阻器的工作原理、结构特点和用途，同时对新型电阻器的设计开发提出了展望和建议。
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。
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