释义 |
gravure printing短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 照相凹版印刷 Tension system of gravure printing machine is a nonlinear system with variable parameters, the change of this system is very wide, so the author uses frequency conversion motor as its executive body. 印刷机张力系统是个变参数的非线性系统,它变速范围大,所以采用的是变频器驱动交流电机作为执行机构。 fabiao The hard Cr films were deposited on Ni surface by means of magnetron sputtering, multi- arc ion plating and ion beam assisted deposition technique as a wear resistance layer of. gravure printing. 研究了利用等离子体磁控溅射、多弧离子镀和离子束辅助沉积技术制备硬质铬薄膜,并薄膜的性能行了初步研究。 cnki |