[1]本公报中数据均为初步统计数。各项统计数据均未包括香港特别行政区、澳门特别行政区和台湾省。部分数据因四舍五入的原因，存在总计与分项合计不等 的情况。
What is direct lighting (next event estimation) in a ray tracer? An explanation of direct lighting and next event estimation in ray tracers
，详情可参考WPS下载最新地址
in config/README.md.
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