Is it a fixed charge within three minutes?

三分钟之内费用固定吗？

Do you pay your landlord a fixed charge for heating?

你是不是付给你的房东固定的取暖费？

As we know, in many countries there is a fixed charge for personal services.

A我们都知道，在许多国家为私人提供服务是要收取费用的。

Her raised water rates reduced the fixed charge but increased the cost of higher volumes.

她进一步调整水费比例，减少固定税率，但增加高用水人群的费用。

The fixed charge transportation problem (FCTP) is a special linear programming problem.

固定费用运输问题是一种特殊的线性规划问题。