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1·She is the first female rural postal worker to take the stage at a meeting of the UPU.

她是第一个登上万国邮政联盟讲台的乡村女邮递员。

2·The suitable content of UPU were determined by the testing of impact resistance, hardness and HDT of the cured resins toughened with UPU.

根据UPU增韧聚酯的落重冲击能和热变形温度等力学性能的测试，初步确定了适宜胶种的合成条件及其用量。

3·Taking customers and credit first as its sole operation principle, UPU provides the customers with the best quality products and services.

公司秉承“顾客至上，诚信为本”的经营理念，为广大客户提供优质的产品及服务。

4·A key task for the UPU will be to ensure that the fierce competition in the postal market does not degenerate into chaos but proceeds in an orderly manner.

万国邮联的主要任务是确保在邮政市场上的激烈竞争不要引起混乱，而是要有序地进行。

5·Based on the screw theory, the first-order effect coefficient matrixes of a 3-upu parallel pyramid mechanism under initial position and movement along X-coordinate axis are established.

采用螺旋理论，首先分别建立了3 - UPU并联角台机构在初始位形下和沿x轴方向发生移动后的一阶影响系数矩阵。