The results show that the axis linear ablation rate of the material has a great change and the linear ablation increases along the gas flux direction.
结果表明：导流管轴向线烧蚀率变化较大，沿气流方向呈上升趋势。
2
The material of oil seal is advance, reasonable, and the processing of confect is preciseness. The change of pull intension rate is small. It suit varies of abominable environment.