device for holding the pack, and to foster the coal in steep and rise to storage in mining industries

• 1. 光通信网络中的光学收发器和用于补偿光信号中的减损并在通信网络中的光学收发器中实现的方法 [P] . 中国专利： CN107925480B . 2020.04.14
• 2. 用于消除谐波分量并在交流‑直流变换器和直流‑交流变换器中获得单位功率因数的方法和装置 [P] . 中国专利： CN107005148A . 2017-08-01
• 3. process for vorruecken and tabling of the pack in the mining of coal floezen in steep and rise to storage [P] . 德国专利： DE000001104472A . 1961-04-13

  机译： 陡壁开采法洛岑中的vorruecken和包装的制粒工艺，然后升至储存

• 4. method and arrangement for holding the pack when working with ueberhaengendem packing and storage in steep rise [P] . 德国专利： DE000001092863A . 1960-11-17

  机译： ueberhaengendem包装和陡峭存储时用于保持包装的方法和装置

• 5. Plough and steep semi-finished items such extraction device for storage in the underground mining operations, in particular coal mining [P] . 德国专利： DE1220365B . 1966-07-07

  机译： 犁和陡峭的半成品，例如用于地下采矿作业（尤其是煤矿开采）中存储的提取装置

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