（一）境外单位或者个人向境内单位或者个人销售服务、无形资产，在境外现场消费的服务除外；
Comparison between error-diffusion and ordered dithering using an 8-colour regular palette. Left to right: error-diffusion, ordered.，推荐阅读im钱包官方下载获取更多信息
It’s also possible to abandon the threshold matrix altogether and instead calculate a value for every pixel coordinate at runtime. If the function is simple enough this can be a good and efficient way to break up patterns and create interesting textures.。safew官方版本下载对此有专业解读
[4] M. Sambridge, J. Braunl & H. McQueen: “Geophysical parametrization and interpolation of irregular data using natural neighbours” (1995). ↑
throw new Error(