上弦的英文

重點詞匯

上弦───top chord

雙語使用場景

Concrete was poured in separately from mid-span of arch slab to the supports and then from the supports to the top chord of the arch chord so as to balance the pouring load.───由拱板下弦跨中同時向拱板支座澆筑混凝土，然后從拱板支座連續沿拱板上弦向中間合龍，使澆筑荷載相對均衡。

The top chord components of beam string structure are fabricated in factory and assembled on site.───該張弦梁上弦構件在工廠分段制作，現場拼裝。

Then the structural accident of total section drive-through type crack is caused in arch frame top chord, which is induced by hoisting and detection using pulley arbitrarily.───銅綠山礦某三鉸拱屋架單軌吊梁結構體系，因技術改造增加設備簡體重量，隨意用滑輪組起吊檢修，導致拱架上弦全截面貫通式開裂的結構事故。

The well structure comprises a pair of top chord members extending between the end structures;───所述井結構包括：在所述端結構間延伸的一對頂部弦桿部；

英語使用場景