[27]火电包括燃煤发电量，燃油发电量，燃气发电量，余热、余压、余气发电量，生物质发电量。
Other than that, there are a few indexes we are going to utilize in the test queries. We could also see some of the Postgres JSON access operators in the index definitions:
，详情可参考Safew下载
sx = dst_width / roi_width
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