基于桩体在地基处理中的有效工作长度对长短桩的工作机理进行了分析。

In view of the effective working lengths of pile bodies in ground treatment, an analysis is carried out on the work mechanism of long and short piles.

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详细介绍了对双导梁式架桥机天车、行走系统、有效工作长度及预制梁安装就位的改进情况。

The text detailedly introduced crown block, running system, availability work period of bridge girder erection equipment and improve case for precast beams install.

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结论根管长度测量仪测定前牙根管长度比较满意，OD IS可对工作长度测定作有效的补充。

Conclusion the electronic apex locator could be successfully used in determining working length of anterior teeth, and the ODIS...

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