| 1. | Each animal has a chalky skeleton .
每个珊瑚虫有灰质的骨骼。 |
| 2. | Poliomyelomalacia affected primarily fattening stock .
脊髓灰质软化病主要侵害肥育猪群。 |
| 3. | Calcite cementation seems a possibility where lime grains or calcareous organisms are abundant .
在灰质颗粒或钙质生物丰富的地方，方解石胶结作用似乎是有可能的。 |
| 4. | Oolite lime sand packs naturally with 40% porosity because the particles are essentially spheroids .
自然堆积的灰质鲕粒砂具有40的孔隙度，因为其颗粒其本上都是球状的。 |
| 5. | The distinction between grey and white matter is lost
灰质和白质的区别不清。 |
| 6. | Grey matter appears grey , white matter white
灰质呈灰色，白质呈白色。 |
| 7. | Sudan had been polio - free since two thousand five
苏丹从2005年开始就没有出现过脑灰质炎病例。 |
| 8. | Lamina terminalis cinerea ventriculi tertii
第三脑室灰质终板 |
| 9. | Those cases , however , were caused by the polio vaccine itself
那些是由于骨髓灰质炎疫苗自身所引起的。 |
| 10. | In very rare cases the virus can change and cause polio
在非常少的病例中，其能够改变和引起骨髓灰质炎。 |
