结论：河北省溜蝇属昆虫种数约占该科全国已知种数的52.78%，属于古北区系。
Conclusion: The species of genus Lispe in Hebei Province make up 52.78% of known Lispe in China and have a Palaearctic distribution.
从油气系统角度分析了华北区古生界的石油地质条件。
The Palaeozoic petroleum geological condition of Huabei area had been analyzed in detail from the petroliferous system angle.
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