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1·All results indicate that YR-Electromagnetic flow velocimeter can be pratically used to measure flow velocity in Yellow River.

试用表明，YR电磁流速仪在黄河上测流是可信的。

2·The design of the bridge is carried out in the eight-character principle of safety, pratically, economically and aeshetic by comparing and choosing the best one.

对该桥的设计，本着“安全、实用、经济、美观”的八字原则，本设计提出三种不同的桥型方案进行比较和选择。