breast hole 中文意思是什麼

breast hole 解釋
水平或緩傾斜炮眼
  • breast : n 1 乳房；〈比喻〉營養的來源。2 胸；胸脯，胸膛；胸口；胸懷，心情。3 （山）腹；（衣服的）胸部。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. Usage : pastes to the breast cross hole or the pain spot under the touch, one piece on left & right

    用法：貼于乳房十字穴或有觸痛部位，左右各一片。
  2. 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。
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