ability to pay basis

基本解释

It supposedly allots health care independently of the ability to pay, and solely on the basis of clinical need;
据称，它将完全根据临床需要，独立于支付能力来分配医疗保健；
SaaS has as its central defining characteristic the ability for customers to use a software application on a pay-as-you-go subscription basis.
SaaS 区别于其他应用程序的主要特征就是能够使客户在使用应用程序时按照使用量付费。
The second chapter is mainly about principle of ability to pay and theory basis of inheritance taxation.
第二章是量能课税原则与遗产征税的理论基础。