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- To decrease bending and twist deformation of non-sym metry extruded sections, a new conception of local extrusion ratio and die band ratio has been set up, and also the formulas for the place of die hole on the ba sis of simulating test. 为减小非对称型材挤压的弯扭畸变,在试验研究的基础上,建立了局部挤压比、挤压带系数的概念,挤压筒中心与挤压模孔型中心相对位置的计算式。
- Abstract: To decrease bending and twist deformation of non-sym metry extruded sections, a new conception of local extrusion ratio and die band ratio has been set up, and also the formulas for the place of die hole on the ba sis of simulating test. 文摘:为减小非对称型材挤压的弯扭畸变,在试验研究的基础上,建立了局部挤压比、挤压带系数的概念,挤压筒中心与挤压模孔型中心相对位置的计算式。
- He left when the band began to beat out pop music. 乐队一奏起流行音乐他就走了。
- The band played a military march. 乐队吹奏军队进行曲。
- A live band is always a good draw at a party. 现场演奏的乐队在聚会上总是很吸引人的。
- He was waylaid by a band of guerrillas. 他遭到游击队的狙击。
- Radio2 can be heard on the long wave band. 第二广播电台可在长波段收听到。
- The brass band is banging away in the park. 铜管乐队在公园里吹吹打打。
- He has formed a new band with his brother on bass. 他组织了一个新乐队,由他弟弟弹低音吉他。
- He was attacked by a band of ruffians. 他遭到一伙暴徒袭击。
- She used a rubber band to tie her hair. 她用一根橡皮筋扎头发。
- The band drowned our conversation. 乐队的演奏声把我们谈话的声音淹没了。
- The brass band still plays to packed houses. 这支铜管乐队卖座率仍然很高。
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- The jazz band gave out with quick rhythms. 爵士乐队狂热地奏出了快速的旋律。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- The band swung lightly down the street. 那伙人踏著轻快的步伐沿街走去。
- In the distance a band was playing. 远处一乐队在演奏。
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- The first or last term of a ratio or a series. 首项,末项比率或数列中第一个或最后一个项