常見(jiàn)例句Research purposes: This paper finds the thickness of solid slib which replaced slab of elastic supporting block ballastless track. 研究目的:找到與不規(guī)則形狀形式的彈性支承式無(wú)砟軌道道床板等效的實(shí)體板的等效厚度。 返回 SLIB