![[Three-in-one Zhongyuan OA Credit Disk] Complete operating version + construction tutorial](https://www.youcode.cc/wp-content/uploads/2026/03/e3640180e925f2f36fa386d0c51b7cee_batch_1755171879_1_40216191715.png-300x200.webp)
It is very simple to set up. There are water withdrawal and precipitation settings in the background. It is a typical OA credit disk and can be preset + manual lottery draw.
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