| 1. | The ethical snag is that the best stem cells are harvested from human embryos , killing them
最好的干细胞是从杀死的晶胚上获得的，这成为干细胞研究伦理道德方面的障碍。 |
| 2. | Yes , said mr bush on july 19th , flanked by some families who had “ adopted ” other people ' s frozen embryos and used them to have children of their own
布什和一些接受了冷冻的晶胚而生下他们孩子的家庭都认为这的确是错的。 |
| 3. | Then there is the question of multiple births , when several embryos are implanted in the womb in the haphazard hope that one , two or more might " take "
于是，当多个晶胚被植入子宫，希望侥幸“收获”一胞胎、两胞胎或者多胞胎的时候，就有了多生的问题。 |
| 4. | This last problem has created its own macabre solution : selective " reduction " or " deletion " ( as if they were unwanted emails , maybe ) of embryos
这个最后的难题产生了它自己的令人毛骨悚然的解决办法：晶胚有选择地“减少”或者“删除” （可能就像不受欢迎的电子邮件） 。 |
| 5. | A maverick u . s . - based fertility expert is due to launch an international search today for a woman willing to be the first surrogate mother for human cloned embryos
美国一位个人生育科学家今天将发起一项世界范围内的搜寻，寻找一位女性自愿担当第一个人类科隆晶胚的代孕母亲。 |
| 6. | In practice this means that sperm and egg are brought together in a petri dish ; the resulting embryos are grown in a laboratory and then transferred to the womb of the mother
它实际上是把精子和卵子一起放入一个有盖的培养皿中，并在实验室培养由此产生的晶胚，然后将其移入母体的子宫。 |
| 7. | Proponents of embryonic stem - cell research point out that hordes of embryos are created during fertility treatment , and the vast majority of these are either frozen indefinitely or destroyed
胚胎干细胞研究的支持者们指出人的晶胚是在生育过程中形成的，大多数晶胚不是被破坏就是不明原因地被冻结了。 |
| 8. | Analysis for the product hydration process of natural maintenance show tailings and quartz sand surface is advantage for the major influence of hydration outcome in jing pei generate " base role " , do not participate in chemical reaction basically , while steam temperature and pressure for hydration structure and form of low silicon - tailings aerocrete have obvious influence , it is why the compressive strength of two products have obvious difference
对自然养护的制品水化过程分析的研究表明，尾矿和石英砂表面对于水化产物的主要影响是利于晶胚生成的“基底作用” ，基本不参与化学反应，而蒸压温度和压力对低硅尾矿加气混凝土水化产物的结构、形态有着明显的影响，导致两种制品的抗压强度有明显差别。 |
