改进后的双支架比巳有的双支架使用起来更为方便。
The improved double stands are more convenient than the existing double stands in use.
解决的主要技术问题是摩托车双支架和万向轮的联接。
The turning universal support solves the major technical problem of the connection of the double supports of the motorcycle and the universal wheels.
结论联合双支架置入是治疗胆道和十二指肠梗阻的有效的方法。
Conclusions Combined biliary and duodenal stenting is an effective method palliation of biliary and duodenal obstructions.
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