birth canal造句

• One specimen is even preserved in the birth canal
  一个样本甚至在产道中被保存了下来。
• That isolation ends during the baby ' s trip through the birth canal , which is a haven for bacteria
  当胎儿从细菌的避风港经产道娩出后，这种隔离结束了。
• The baby is most likely upside down , facing your side , when its head enters the birth canal
  这时胎儿正要进入产道，很可能已经头下脚上，脸朝你的侧面。
• During labour , the left and right pieces overlap and help to ease the baby s passage through the birth canal
  在分娩时，头颅骨的左右部分相互重叠，使胎儿易于通过产道。
• During labour , the left and right pieces overlap and help to ease the baby s passage through the birth canal
  在分娩时，头颅骨的左右部分相互重叠，使胎儿易于通过产道。
• For humans , this tight squeeze is complicated by the birth canal ' s not being a constant shape in cross section
  人类产妇不只面临这个紧密契合带来的问题，产道的形状更使问题雪上加霜。
• In contrast to the twisted birth canal of modern humans , monkeys ' birth canals maintain the same cross - sectional shape from entrance to exit
  因为猴子的产道与人类的不同，直筒筒的，横切面的形状没有变化。
• A monkey infant enters the birth canal headfirst , with the broad back of its skull against the roomy back of the mother ' s pelvis and tailbone
  猴儿进入产道时，头下脚上，较宽的后脑勺顶著母猴骨盆背面和尾椎的宽敞空间。
• The entrance of the birth canal , where the baby begins its journey , is widest from side to side relative to the mother ' s body
  原来人类产道的横切面是连续变化的，入口处（就是胎儿进入人世的起点）最宽的地方朝向母体的两侧。
• Conveniently , the birth canal ? the bony opening in the pelvis through which the baby must travel to get from the uterus to the outside world ? is also an oval shape
  正巧产道也是卵形的（产道即骨盆的出口，是胎儿从子宫来到人世的必经之道） 。
• When morning brought no relief or delivery , we found a vet who informed us that a big pup was blocking the birth canal , which could be fatal to heidi
  天亮时海迪阵痛不减，可仍未分娩。我们找到一位兽医，他告诉我们说，肚子里的小狗太大，挡住了产道，海迪有生命危险。
• Approximately 24 hours after her temperature drops , she can be expected to enter the first stage of labor , when the cervix dilates and opens the birth canal for the passage of puppies
  大约在体温下降后24小时，当母犬的子宫颈扩张，产道打开，即进入了分娩的第一个步骤。
• To test our theory that the practice of assisted birth may have been around for millennia , we considered first what scientists know about the way a primate baby fits through the mother ' s birth canal
  我们认为助产行为也许已经有几百万年的历史了，为了测验这个理论，我们首先研究灵长类胎儿通过母亲产道的方式。
• When the pregnancy hormone level changes in vivo , genital blood rich in immune function has declined , therefore , the size of genital warts has increased rapidly , or even blocking the birth canal level
  当妊娠期体内激素水平剧变时，生殖器的供血丰富，机体免疫功能又有所下降，故生殖器疣的体积也迅速增大，甚至达到阻塞产道的程度。