请求仓储的材料为液体时，它的最大储存限制为20K，但此时车子仍在不断输送液体到请求仓储，而此时请求仓储中的液体不会增加。
When the material requested for storage is liquid, its maximum storage limit is 20K, but at this time the vehicle is still continuously transporting liquid to the requested storage, and the liquid in the requested storage will not increase at this time.
