frost box 中文意思是什麼

frost box 解釋
防凍箱
  • frost : n 1 霜;霜柱;結霜;冰凍,嚴寒;冰點以下的溫度。2 (態度、感情等的)冷淡,冷酷。3 〈俚語〉(演劇...
  • box : n 1 箱,櫃,匣,盒;罩殼;錢櫃;〈美口〉保險箱;郵箱,信箱;〈英國〉禮盒;禮物(旅行用)衣箱。2 ...
  1. Considering the past research results, frost resistance of concrete using portland cement, and the designed service life of 100 years of testing bridge, the control indexes of high durability concrete are defined in this paper. mixture proportion of concrete used in pier column, coping, precast box beam and plate of bridge is designed based on the compact pile theory, and construction technique is studied also

    結合課題組以往的研究成果,根據試驗橋設計使用壽命100年的要求,確定出高耐久性混凝土的設計控制指標,基於最緊密堆積原理和最佳漿骨比原理對橋梁的墩柱、蓋梁、預制箱梁和橋面板用高耐久性混凝土的配合比進行設計,並對其施工應用技術進行了研究。
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