Income tax is scaled according to how much you earn.
所得税是根据你收入多少按比例征收的。
ad valorem (customs) duty: A tax or duty levied as a given proportion of the value of a commodity or service.
从价税(关税):按照商品或服务的价值的一定比例征收的税或关税。
(British) liable to payment of rates or taxes.
（英语）应按比例付款的或征税的。
The SWOT Analysis of Income-Contingent Repayment in National Student Loans;
按收入比例偿还国家助学贷款的SWOT分析
Interest income is recognized on a time proportion Basis that takes into account the effective yield on the asset.
利息收入乃根据时间比例作基准按该等资产之有效收益确认。
To pide, distribute, or assess proportionately.
按比例分配按比例分、分发或估量
to scale down taxes
按比例减少税额inscale按比例
In the former case the Company shall retain a premium calculated on short term rate basis for the time the Policy has been in force while in the latter case such premium shall be calculated on pro rata daily basis.
对本保险单已生效期间的保险费,前者本公司按短期费率计收,后者按日比例计收。
An ad valorem tariff is expressed as a fixed percentage of the value of the imported product.
从价税是按照进口商品价值来确定税率百分比征收的；
His expenditure on pleasure and luxuries is rather high in proportion to his income.
按其收入来说，他用于娱乐和奢侈品上的花销比例太大。
Income-Contingent Loan: International Models and the Design for China;
“按收入比例还款”型学生贷款：国际模式与中国设计
The Policy Choice and Simulation of Income-contingent Student Loan in China;
“按收入比例还款”型学生贷款:政策取向与还款测算
The Applicability of Income Contingent Loans in Developing and Transitional Countries;
按收入比例还款型学生贷款在发展中国家和转型国家的适用性
The income tax was declared unconstitutional by the Supreme Court in 1895 because it was not apportioned among the states in conformity with the Constitution.
１８９５年最高法院判定所得税法为违宪，因为该项税收没有按照宪法规定在各州之间按比例分配。
scaled geometry
按比例缩小的几何尺寸
Proportion allocation in stratified random sampling
按比例分层随机抽样
gains from proportionate stratified sampling
按比例分层抽样的得益
scaled integrated circuit
按比例缩小的集成电路