经快速检查之后，发现两者皆是帘幕型极光，因为“帘幕”可以恰当地描述这种型态的极光。
A quick inspection indicates that it is curtains for both, as the designation "curtains" well categorizes the type of aurora pattern pictured.
它会先检查查询的型态和查询中的各种运算子。
It first examines the shape of the query and the various operators that comprise it.
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