Ad valorem duty or ad valorem tax.

价税或按价值所计的税。

Levying a 63 per cent ad valorem tax on all wines before value added tax.

更像是阻力——对所有红酒征收63%的从价税。

An ad valorem tax is a tax based on the value of real estate or personal property.

从价税是税收的基础上的价值，房地产或个人财产。