There are several possible explanations: it could be that the program was choosing the wrong patients for transplants or using organs of poor quality, according to the newspaper.
这有几种解释：根据报纸报道可能是给移植物选错了病人或者用了低劣的器官。
2
Transplanting mechanism is the main part of a transplanter, its performance determines the transplanting quality, reliability and number of transplants per minute.