It is not known when and by whom the idea of transfusing blood was developed.

还不清楚是谁首先提出输血的概念。

youdao

Please not: when the make-up concentration is high, the transfusing time will increase.

请注意：如果制备浓度提高，溶液的输送时间会相应延长。

youdao

Please not: when the make-up concentration is high, the transfusing time will increase.

请注意：如果制备浓度提高，溶液的输送时间会相应延长。

youdao