常見例句The lower construction is a rectangular plate beam gantry with good rigidity and tensional strength.下部結搆爲空間矩型板梁式門架，有較好的剛度和抗扭性能。The advance support of intake and return aircourse needs a lot of plate girders in the comprehensive mechanized coal mining face.綜採工作麪的進廻風巷超前支護要用很多板梁。 返回 beam-plate