为企业电器防火提供了成熟的经验。
It supplies ripe experience for enterprise electricity device flameproof.
在这些地层中采用盾构法施工国内外已有较为成熟的经验。
The subway tunnels are built with shield driving method in these strata has much mature experience at home and abroad.
一旦成熟的经验，试点城市，房地产税的征收将是理所当然的。
Once the mature experience of the pilot cities, real estate tax levy will be a matter of course.
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