您要查找的是不是：
- high perforation density 高孔密
- The results of calculation and test show that the strength of casing reduces along with the perforation density increases. 计算和试验结果都表明,射孔后套管的极限承载能力均有不同程度的下降,下降幅度与射孔密度有关。
- EHD and perforating density also influence the strength of casing, but there are minus changes between before-perforation and after-perforation. 射孔孔径、孔密对套管抗挤压强度有影响，但射孔前后变化不大；
- The density of population in this city is very high. 这个城市的人口密度非常高。
- JDCS :A Distributed Computing System Implementing High Perfor mance Computing JDCS:实现高性能计算的分布式计算系统
- She skirted round the problem of the high cost. 她避而不谈巨额费用问题。
- Men and birds are fain of climbing high. 不论人还是鸟都愿意往高处攀。
- The bird sang high and clearly in the tree. 鸟儿在树上清脆地高歌。
- Goods of high quality are few and far between these days. 质地精美上乘的物品现在不多见。
- The medieval town was fortified with a high wall and a deep moat. 这座中世纪的城市周围建有城墙和护城河。
- Yuan H,Sarica C,Brill J P.Effect of perforation density on single phase liquid flow behavior in horizontal wells.SPE 37109,1996 周生田;张琪等.;水平井筒变质量流体流动实验研究
- I set a high value on his advice. 我认为他的忠告很有价值。
- Many competitors have entered for the high jump. 已有许多人报名参加跳高比赛。
- She enjoyed high prestige among the masses. 她在群众中享有很高威信。
- The dresses in the shop are priced high. 这家商店的衣服定价很高。
- The high salary reconciled me to living abroad. 我为获高薪也只好在国外生活。
- Trucks shuttled to and fro on the high ways. 车辆在高速公路上穿梭行驶。
- These rocks are awash at high tide. 这些礁石在涨潮时被海水淹没。
- A high wall fetched in an ancient small town. 一道高高的城墙围绕着一座小小的古城。
- I am glad to always find her in high spirits. 我对经常看到她情绪高涨感到很高兴。
