To ensure the concrete quality of bridge piers of the railway and appearance of the concrete to have clear edges and corners , smooth lines , good surface finish and agreeable colors , and also to ensure that cracks will not occur in the concrete and the concrete can satisfy its technical requirements of workability , strength and durability , the mix proportioning of the concrete , the possible causes that will lead to the cracks in the concrete and the relevant construction technology have been studied thorough tests 为确保桥墩混凝土质量,保证混凝土外观棱角分明、线条流畅、表面光洁、色泽一致;保证混凝土不出现裂缝;保证混凝土满足工作性、强度和耐久性的技术要求,对桥墩混凝土配合比、裂缝产生原因和施工工艺进行了试验研究。
Our company specializes in all kinds of high - grade daily - use porcelain and craft porcelain products , the products with the characteristics of handsome appearance , novel style , graceful structure , fresh artistic style , smooth lines , flowery colors , exquisite originality and diaphanous portrayal , rich in local traditional style and eastern artistic features 本公司专业生产各式各样的高档日用瓷及工艺瓷制品,产品以其造型美观、款式新颖、构图优美、格调清新、线条流畅、色彩绚丽、创意高雅、绘工精致,富有地方传统风格和东方艺术特色。
It offers the idea according to problem faced , considering the good character of the ends , the ajusted cubic b - spline curve is used to fit ship lines . it finds out the control vertexs according to a sequence of given points , and then , through particular formula , each point in the curve could be worked out . it smoothes lines with the method based on small - paramter 针对面临的问题,提出了自己的思路,在数学计算方法上,由于三次准均匀b样条曲线良好的端部性质,这里用它来拟合船舶型线,首先根据所给的初步型值求出其控制顶点,然后根据相关公式进行插值便能得到曲线上的所有插值点。