earth backing 中文意思是什麼

earth backing 解釋
復土
  • earth : n 1 〈常E 〉 地球。2 大地,陸地,地面,地上。3 土壤,土。4 【化學】土類;泥。5 世界人類;人的軀體...
  • backing : n 1 後退,倒退,逆行。2 支持物;支援;(一群)支持人。3 襯墊物;(書的)背襯,襯里,照相底板。4 ...
  1. Unfortunately, in spite of more than 50 years ' work and billions of dollars of backing, no one has yet managed to get an earth - bound fusion reaction to produce useful energy

    遺憾的是,盡管進行了50多年研究,耗費了幾十億美元,至今無人可以在地球上實現聚變反應,製造可以使用的能量。
  2. Secondly, the paper analyzed the behavior of isotropic and orthogonal anisotropic materials " cws on the basis of above theory and software. regularities of cws " deformation inner force and shared load and earth pressure in excavating stage and driving stage were gained. regularities influenced by material features top beam excavating depth sidewall depth properties of soil layers rear backing and location of load were also obtained, especially rules of display degree exerted by circular and vertical loads were also obtained

    通過分析,得到了形成階段及頂進階段圓形工作井的變位、結構內力、分載及土壓的分佈規律及材料性質、頂冠梁及圍檁、開挖深度、井壁插深、土層性質、后靠背、頂載作用位置等因素對結構受力性狀的影響規律,特別是得到了工作井在受力時結構環向與豎向承載作用發揮程度的規律。
  3. Selection and design of the foundations in the subsoil with large quantities of earth backing including gangues

    大面積填充地基條件下的基礎選型及設計
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