• Scientists say the auxin has an indirect effect on buds on the side of the stem to prevent branching.

    VOA: special.2009.10.13

  • That's why people are so excited about embryonic stem cells because in nature they become all the cells of the body.


    耶鲁公开课 - 生物医学工程探索课程节选

  • stem cell researchers have found a way to get perfectly usable stem cells from fully grown human beings.


    干细胞和伦理 - SpeakingMax英语口语达人

  • In March, President Obama ended restrictions on the use of federal money for research using human embryonic stem cells.

    VOA: special.2009.04.07

  • Different than the embryonic stem cell we talked about before, so it's an example of an adult stem cell.


    耶鲁公开课 - 生物医学工程探索课程节选

  • The research suggests that to grow, they have to be able to export the hormone into the main stem.

    VOA: special.2009.10.13

  • All the goods of civilization, Hobbes tells us, stem from our ability to control pride.


    耶鲁公开课 - 政治哲学导论课程节选

  • But she says it must be shown scientifically that cord blood stem cells cause improvement, and not other reasons.

    VOA: special.2011.02.01

  • Embryonic stem cells can give rise to every cell type in the body.


    斯坦福公开课 - 7个颠覆你思想的演讲课程节选

  • The expert urges Afghan farmers to tell agriculture officials immediately if they suspect stem rust in their fields.

    VOA: special.2009.08.18

  • So the idea is, if you can take a cell... you can take a stem cell from your body


    关于干细胞的研究 - SpeakingMax英语口语达人

  • Last year,President Obama ended restrictions on the use of federal money for studies of human embryonic stem cells.

    VOA: special.2010.11.02

  • So the major controversy behind stem cell research, at least as far as I understand it,


    干细胞和伦理 - SpeakingMax英语口语达人

  • The disease is a form of stem rust named for its discovery in Uganda ten years ago.

    VOA: special.2009.08.18

  • Israel's acceptance of a relationship with God doesn't stem from mystical introspection, or philosophical speculation, Levenson says.


    耶鲁公开课 - 旧约导论课程节选

  • Two new studies have investigated why fewer females,compared to males, study and work in the so called STEM subjects in the United States.

    VOA: special.2010.04.01

  • This is one of the very important areas that still is not completely understood in stem cell biology.


    耶鲁公开课 - 生物医学工程探索课程节选

  • The soaptree yucca plant can make its stem grow longer to keep its leaves above the sand.

    VOA: special.2010.01.04

  • There's a lot of interest in obtaining stem cells from the blood of the umbilical cord on birth.


    耶鲁公开课 - 生物医学工程探索课程节选

  • The new research shows that the buds on the side cannot export their auxin into the main stem because it is too full.

    VOA: special.2009.10.13

  • So we needed to come up with another source, a renewable source, so we turned our attention to embryonic stem cells.


    斯坦福公开课 - 7个颠覆你思想的演讲课程节选

  • Doctor Kakarala says the cancer-fighting treatments known as chemotherapy do not control tumors containing cancer stem cells.

    VOA: special.2010.06.01

  • This process is called self-renewal, so that's one important process of property stem cells, that they're capable of self-renewal.


    耶鲁公开课 - 生物医学工程探索课程节选

  • During an infusion, stem cells enter the body through a vein leading back to the heart.

    VOA: special.2011.02.01

  • But from what I know, generally the more religious groups tend to be opposed to stem cell research,


    关于干细胞的研究 - SpeakingMax英语口语达人

  • Stem cells from very early embryos are able to grow into any tissue in the body.

    VOA: special.2009.04.07

  • This stem cell which is reproduced still has the potential to undergo asymmetric division but this one does not.


    耶鲁公开课 - 生物医学工程探索课程节选

  • The common or purple foxglove produces pretty flowers along a tall leafy stem called a spike.

    VOA: special.2009.08.25

  • The way we did this was to coax embryonic stem cells first to develop into the surface layer.


    斯坦福公开课 - 7个颠覆你思想的演讲课程节选

  • Stem cells have the ability to grow other cells, such as heart, nerve or brain cells.

    VOA: special.2010.06.15


stem cell 干细胞,骨髓干细胞

stem from 起源于

brain stem 脑干

drill stem 钻柱;钻杆;钻具

main stem [美俚]干线;主街

valve stem 【机】阀杆

from stem to stern 完全;从头到尾

stem rust 杆锈;茎锈病

hemopoietic stem cell 造血干细胞

stem borer 蛀茎虫;天牛;蔗螟;茶天牛

rising stem 升杆

stem seal 阀杆密封;芯轴密封

- 来自原声例句

进来说说原因吧 确定

进来说说原因吧 确定