英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:


请选择你想看的字典辞典:
单词字典翻译
Placent查看 Placent 在百度字典中的解释百度英翻中〔查看〕
Placent查看 Placent 在Google字典中的解释Google英翻中〔查看〕
Placent查看 Placent 在Yahoo字典中的解释Yahoo英翻中〔查看〕





安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Placenta - Wikipedia
    The placenta (pl : placentas or placentae) is a temporary embryonic and later fetal organ that begins developing from the blastocyst shortly after implantation
  • Placenta: How it works, whats normal - Mayo Clinic
    The placenta is an organ that forms in the womb, also called the uterus, during pregnancy The placenta is connected to a developing baby by a tubelike structure called the umbilical cord
  • Placenta: Purpose, Anatomy, Function Complications
    The placenta is a temporary organ that forms in your uterus during pregnancy It attaches to your uterine wall and provides nutrients and oxygen to the fetus through the umbilical cord
  • What Is the Placenta — and How Does It Help Your Baby Grow?
    The placenta is a pancake-shaped organ that develops in the uterus exclusively during pregnancy It’s made up of blood vessels and provides your developing baby with nutrients, water, oxygen, antibodies against diseases, and a waste removal system
  • The placenta: What it is and how it works - BabyCenter
    The placenta is a pancake-shaped organ that develops within the wall of your uterus and connects to your baby though the umbilical cord By the end of pregnancy, it grows to be about 9 inches in diameter and about an inch thick at the center
  • Human Placenta Project: How Does the Placenta Form?
    Human Placenta Project: How Does the Placenta Form? The following illustrations show how the human placenta develops The timeline of placental development illustrates how the placenta changes over the course of pregnancy
  • Why Is the Placenta Important During Pregnancy?
    The placenta keeps your baby alive by supplying oxygen, nutrients, and hormones while filtering waste and offering immune protection throughout pregnancy





中文字典-英文字典  2005-2009