Some donors give tied aid – they require the recipients to use the money to purchase equipment, etc. from them.
一些捐助者提供有条件的援助——他们要求受援者用这笔钱从他们那里购买设备等。
英语百科
Tied aid
Tied aid is foreign aid that must be spent in the country providing the aid (the donor country) or in a group of selected countries. A developed country will provide a bilateral loan or grant to a developing country, but mandate that the money be spent on goods or services produced in the selected country. From this it follows that untied aid has no geographical limitations.