| 1. | Cavities in teeth are caused by decay .
牙齿上的空洞是由龋蚀造成的。 |
| 2. | The peritoneal cavity is a potential space .
腹腔是一个潜在的间隙。 |
| 3. | The peritoneal cavity is a closed sac .
腹膜腔是一个封闭的囊腔。 |
| 4. | This reduced body cavity is called a hemocoel .
这种缩小的体腔称为血腔。 |
| 5. | The cavity is usually evacuated .
共振腔通常是抽空的。 |
| 6. | Epithelium also lines the air tubes and lung cavities .
上皮组织还衬盖气管和肺腔。 |
| 7. | No cavity is demonstrable(planigrams are usually required) .
无空洞可见（一般需断层摄影）。 |
| 8. | The two cleaved facets define the fabry-perot cavity .
这两个解理面限定了法布里珀罗光腔。 |
| 9. | The cavity in the tower is filled with high-strength concrete .
在塔内的空洞部分填满高强混凝土。 |
| 10. | The stomach is a large pouch located high in the abdominal cavity .
胃是一只位于腹腔高处的大袋。 |
