crown board 中文意思是什麼
crown board
解釋
蜂箱蓋-
The crown f1 take - off system meets the high standards and rule of the iaaf and caa. the crown take - off system consists of the foundation tray, take - off board, blanking lid and the plasticine insert. take - off board
皇冠牌f1起跳板系列符合高標準和iaaf caa規則,皇冠牌起跳板是由底盒起跳板橡皮泥板和底盒填充板組成。 -
What ’ s more, this paper takes the effect of crown wall rock and mid - board foundation reinforced parametric variation on tunnel structure stress and stability into account grounded on building typical section model of i wall - rock sector
另外,本文還通過建立類圍巖地段隧道典型斷面模型,分別考慮拱頂圍巖和中墻地基加固參數的變化對隧道結構受力和穩定性的影響。
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