| 1. | The surface density of galaxies in a cluster can be measured from photographs .
一个星系团中星系的表面密度可从其照片上测得。 |
| 2. | Standard test method for apparent density of leather
皮革的表面密度的标准试验方法 |
| 3. | Wood wool slabs . measurement of density and weight per area
木丝板.密度和表面密度的测定 |
| 4. | Standard test method for apparent density of activated carbon
活性碳的表面密度的标准试验方法 |
| 5. | Textiles . tests for fabrics . method for the determination of the surface density
纺织品.织物试验.表面密度的测定方法 |
| 6. | Resilient floor coverings . determination of apparent density of agglomerated cork
弹性地板覆盖物.软木块表面密度的测定 |
| 7. | Soil quality . evaluation of apparent density of a soil . gamma - ray transmission method
土质.土壤的表面密度的评定.用伽马 |
| 8. | Thermal insulating products for building applications . determination of the apparent density
建筑物绝热产品.表面密度测定 |
| 9. | Resilient floor coverings - determination of apparent density of agglomerated cork
弹性地板覆盖物.软木块制品表面密度的测定 |
| 10. | Thermal insulating products for building applications - determination of the apparent density
建筑物用热绝缘产品.表面密度的测定 |
