按照这个相当容易的指南可以做一个签名。你必须对GIMP ，以及笔刷/过滤器这些有一点儿最基本的了解。
A fairly easy tutorial to follow to make a sig. You must know the bare basics of GIMP and brushes/filters is all.
在美国和欧洲，通过现在要求的用于对付空气颗粒污染的过滤器和刷具，黑炭的排放已经大幅减少。
In the United States and Europe, black carbon emissions have already been reduced significantly by filters and scrubbers that are now required to fight local particulate air pollution.
浮动式边刷，可调整式主刷，大垃圾挡板，操作计时器，吸入风扇切断装置，专利保护过滤器除尘系统，移动式尘箱。
Bulk waste flap, mobile container, operating hour meter, patented filter shaker system, roller brush, justierbar, side brush, pendelnd, suction fan cut - out.
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