在前人的基础上提出了复合型切缝药包,即是在切缝药包和炮孔壁之间再加一个切缝管,用水做耦合介质。
The complex slotted cartridge is put forward on the basis of previous research, namely, a slotted pipe is added between slotted charge and borehole, using water as medium.
这说明,在没有水动力学不稳定发生的情况下,柔性壁会使湍流边界层中速度型的对数区上移。
The results indicate that coating a compliant wall makes the logarithmic region of a turbulent boundary layer shift upwards as unstable hydrodynamic waves are absent.
本文在研究该结构冷却机理的基础上,从实用的角度出发,以某型现役发动机燃烧室改型设计为例,对瓦块式迷宫冷却结构进行设计,并进行换热分析和壁温计算。
On the basis of investigating cooling mechanism of this cooling structure and from the practical point of view, tile maze cooling structure is designed by taking the modification desi.
该模具消费的制件是长壁制件,脱模后贴在型芯上,推出机构用的是接近制件壁穿型芯的推杆。
The mold of the parts is parts of the wall, after Stripping posted on the core, the agency launched using a wall around parts wear core putt.
该模具消费的制件是长壁制件,脱模后贴在型芯上,推出机构用的是接近制件壁穿型芯的推杆。
The mold of the parts is parts of the wall, after Stripping posted on the core, the agency launched using a wall around parts wear core putt.
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