wall pressure hole 中文意思是什麼

wall pressure hole 解釋
壁面測壓孔
  • wall : n 1 墻壁；（石、磚等的）圍墻；城墻。2 （形狀、用途）像墻壁的東西，障壁；土堤，堤防。3 （礦井、容...
  • pressure : n 1 壓；按；擠；榨。2 【物理學】壓力，壓強；大氣壓力；電壓。3 精神壓力，政治[經濟、輿論等]壓力。4...
  • hole : n 1 洞，穴，孔；（衣服等上的）破洞；傷口；漏洞；窩，坑；水流的深凹處，（河道的）緩流窪。2 （獸的...
  1. Under the function of big pressure and dynamic load, the grains may be moved which may cause the soil body distortion. at present, the relatively ripe methods of drill in gravel layer are mostly double - wall drill pipe reverse circulation drilling, auger stem breast wall drilling and down - the - hole hammer follow down drilling

    論文根據jsl ? 30型礫石鉆機潛孔錘同心跟管鉆具結構，採用程序計算得到了鉆桿內各深度處壓力分佈、鉆頭壓力降、環形空間壓力分佈及空氣流速分佈。
  2. The results show that : the whole bit wear process can be divided into three phases ; the regularity of the machining time per hole with the number of holes machined is close to a periodic variation ; higher machining efficiency or working life can be obtained when the drilling pressure and the wall thickness of the bit are advisable

    發現鉆頭的整個磨損過程可分為3個階段；孔加工時間隨孔數近似呈周期性變化；鉆壓和鉆頭壁厚適當時，可獲得更高的加工效率或者工具壽命。
  3. In order to overcome the shortages resulted from hypothesis of small deformation in radial symmetry based on thick - wall cylinder, plane stress and uniform pressure about residual stress around cold - expanded hole, a new model was proposed which takes into consideration the effect of split - sleeve, the different states along thick direction of specimen

    摘要針對目前在研究冷擠壓孔邊殘餘應力時，大都採用基於厚壁圓筒的軸對稱小變形、平面應力狀態、孔邊受力為均布載荷等假設所帶來的不足，提出了在三維真實模型狀態下，考慮襯套對孔邊受力的影響、試件在厚度方向上的應力差異等因素。
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