Thorough exploration on the open architecture of Auto CAD and by using the developing tools provided by ACAD, a versatile and practical computer aided design system was developed for plan and design of pier on sheet pile.是什么意思_Thorough exploration on the open architecture of Auto CAD and by using the developing tools provided by ACAD, a versatile and practical computer aided design system was developed for plan and design of pier on sheet pile.在线翻译_英语_读音_用法_例句