Did the gums bleed for no apparent reason at all?
您的牙龈是不明原因的出血吗？
For women receiving donor milk, the reasons are plenty, including a major postpartum bleed.
那些使用捐献的母乳的妇女，原因则是多样的，包括产后大出血。
A direct method for measuring this is the pressure bleed test.
一种直接测定的方法就是压力泌水试验。
All valves to be suitable for double block and bleed service.
所有阀门需有双堵塞和双排放功能。
In the Middle Ages, doctors used to bleed people for medical treatment.
在中世纪，医生常给病人放血进行治疗。
In the Middle Ages, doctors used to bleed people for medical treatment.
在中世纪，医生常给病人放血进行治疗。
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