结论AMD的声像学特征主要是增厚球壁层间透声裂隙。
Conclusion The main ultrasonographic manifestation of AMD is the presence of interlamellar transaudient cleft in the thickened ocular wall.
自由装填试验表明：采用大弧厚球扁药能有效提高装填密度。
The free loading test results in simulated cartridge show that the use of oblate spherical powder could be applied to increase the loading density effectively.
研究了大弧厚球扁药成型工艺及其在大口径火炮高装填密度装药中的应用可行性。
This paper deals with the forming technique of the oblate spherical powder and the feasibility of applying it to the large caliber gun propellant charge with high loading density.
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