This is when a bone is bent and breaks along only one side, like a young stick of wood.

VOA: special.2009.02.04

One is because we understand the bone marrow system so much better than we understand all the other stem cell systems.

一个原因就是我们对骨髓系统的认识,远高于其他干细胞系统

耶鲁公开课 - 生物医学工程探索课程节选

There are a couple of tissues that are of particular interest to scientists and clinicians now and bone marrow is one of those.

有一些组织现在受到,科学家和临床工作者的关注,骨髓就是其中之一

耶鲁公开课 - 生物医学工程探索课程节选

Scott Sampson says it is one of the last great dinosaur bone-yards in the United States.

VOA: special.2010.10.05

It's this lump of flesh and bone and muscle that's sitting here in front of you and that each one of you sort of drags around with you.

它是由一块块皮肤,骨骼和肌肉组成,它正坐在你们的面前,并且,你们中的每一个人都被这些肉体所牵制

耶鲁公开课 - 死亡课程节选

Professor Keyak says the measurement is much greater than monthly reductions in bone mineral density of point four percent and one point eight percent.

VOA: special.2009.03.10

Of a million cells in the bone marrow there might only be one of these.

一百万个骨髓细胞中,也许只有一个多能干细胞

耶鲁公开课 - 生物医学工程探索课程节选

A single fracture is when a bone is broken in just one place.

VOA: special.2009.02.04

It was the first place where the concept of stem cells was developed, in that if one looks carefully one can find immature cells in the bone marrow.

这是干细胞概念的发祥地,如果仔细观察造血系统,就能找到骨髓中的未成熟细胞

耶鲁公开课 - 生物医学工程探索课程节选

The bone flute is about twenty one centimeters long.

VOA: special.2009.08.18

Despite the reports of sudden thigh bone fractures, Dr.Bunning says he would still give one of these drugs to a patient with osteoporosis.

VOA: standard.2010.03.14