low-pressure shell 中文意思是什麼
low-pressure shell
解釋
低壓缸殼體-
The phenomena can be observed in the tests low seepage pressures can easily form passageways behind the waterproof layer if there is no drainage layer or the drainage layer is blocked in the single - shell test slab ; the waterproof layer can resist higher seepage pressure if there is no drainage layer or the drainage layer is blocked in the double - shell test slab ; the seepage water can be controlled and drained away in the drainage layer by the water proof layer only if there is unblocked drainage layer behind it in the double - shell test slab
由試驗可見，在單層試驗板中沒有排水層或排水層不通暢時，較低的水壓就能在防水膜后形成滲流通路；在雙層試驗板中沒有排水層或排水層不通暢時，防水膜能抵抗一定程度的滲漏水壓；只有在雙層試驗板中的排水層暢通時，防水膜才能有效地將滲漏水控制在排水層中排走。 -
The research of this paper includes : ? high - speed photography and flash x - ray radiography are both used to capture the process of al shell ' s great deformation under low pressure. front illuminations are used to get the development of the fracture on the al shell. the relative energy release is analyzed from overpressure curves measured with some sensors
本文的研究內容主要包括： ?在受試炸藥經歷低應力大變形過程的susan試驗中，同時採用高速攝影、閃光x射線照相對彈體的撞靶過程進行了拍攝，得到了殼體膨脹變形過程圖像，並使用前照明技術觀察到了鋁殼表面產生的裂紋及其發展變化過程；從壓力傳感器測量的空氣沖擊波超壓曲線，獲得反應釋放總能。 -
Precision vacuum casting technique of the low pressure shell of the kerosene pump
煤油泵低壓殼體真空熔模精密鑄造工藝 -
Technical experiments of heavy al - alloy pressure - tight shell casting was conducted by low pressure casting
摘要採用低壓鑄造法對大型鋁合金耐壓殼體的鑄造工藝進行了試驗研究。
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