帮我翻译成英语：本文以信南高速马谷田互通立交为例阐述现浇变截面连续梁的施工工艺 This article high speed Ma Gutian exchanges the grade separation take the letter south as the example to elaborate south the cast-in-place variable cross-section continuously Liang's construction craft key word letter high speed Ma Gutian exchanges the grade separation variable cross-section pre-stressed continual box Liang full house support
什么是变截面梁 变截面梁2113：在弯矩较大处采用较大的截面，5261在弯矩较小4102处采用较小的截面。这种截面沿轴1653线变化的梁，称为变截面梁.与等截面梁相比，变截面梁节省材料，减轻梁本身重量.详细内容参见：http：//baike.baidu.com/link？url=taq4hpkQ72e7K4DS9Bh8ForA-TD4ClijZCkqdsY1kg9J3QshAXKrdkG5jPEkr_kxLbQtKJS117dzvi1Ob5GEUq
英语翻译 [Abstract]The deflection crankshaft of appliance beam is similar with the computational formula of steel pipe’s variable cross-section deflection which be educed with integral equation for usual load(concentrated force，concentrated force coupling and uniformly force)，and analyze its accuracy.Calculate the deflection of any point on the polygon and round steel pipe.It provides the basis to work out the deflection calculation program for any point of the steel pipe.供参考，估计可以钢管杆用steel pipe就可以了，tube是指小的试管、套管等；与应用梁对应，pipe这个词应该更合适
