| 1. | Fbga fine - pitch ball grid array
精细倾斜球状网阵排列 |
| 2. | Pbga plastic pin ball grid array
塑胶球状网阵排列 |
| 3. | Ebga enhanced ball grid array
增强形球状网阵排列 |
| 4. | Cbga ceramic ball grid array
陶瓷球状网阵排列 |
| 5. | Obga organic ball grid arral
有机球状网阵排列 |
| 6. | Mbga micro ball grid array
微型球状网阵排列 |
| 7. | Bga ball grid array
球状网阵排列 |
| 8. | The required porosities for various cases were obtained through varying the diameter of holes and spacing among the holes
各物理模型通过改变气膜孔径大小和孔间距得到不同的孔阵排列疏密度。 |
| 9. | The computational results show that to a certain extent the denser of the distribution of the holes , the higher of the cooling effectiveness
计算结果显示：在一定的范围内，孔阵排列的疏密度越大，冷却效果越好。 |
| 10. | To investigate the influence of porosity of holes array on cooling effectiveness of an effusion cooled plat plate , a numerical study of the distributions of cooling effectiveness on the hot side of an effusion cooled flat plate was carried out with four different porosities of holes array
摘要为了获得气膜孔阵排列的疏密度对致密多孔壁冷却效果的影响规律，分别对四种疏密度排列下的平板热侧面上的冷却效果进行了数值模拟研究。 |
