史密斯和博伊尔构在想出ccd工作原理之后，没过几个月就东拼西凑地造出了第一台样机，如上图所示。
The very first prototype, pieced together months after Smith and Boyle laid out its working principles, is pictured above.
大跨连续刚构桥大体积混凝土承台浇注是桥梁施工的关键工序之一。
Casting mass concrete of pile caps in long-span continuous rigid frame bridge is one of the key processes during bridge construction.
大跨连续刚构桥大体积混凝土承台浇注是桥梁施工的关键工序之一。
Casting mass concrete of pile caps in long-span continuous rigid frame bridge is one of the key processes during bridge construction.
应用推荐