direct blood matching

例句：

1. 1. This test is used to match the blood type of a donor with that of a recipient.
   这个测试用于将供体的血型与受体的血型相匹配。
2. 2. The process involves direct blood matching to ensure safe blood transfusions.
   这个过程涉及直接血型匹配，以确保安全输血。
3. 3. In emergency situations, direct blood matching can save lives by quickly identifying compatible blood types.
   在紧急情况下，直接血型匹配可以通过快速识别兼容的血型来挽救生命。