Take model of drill pipe frame as a example, experimental modal based on ODS s testing method is studied and the modal parameter is distinguished and the testing results are analyzed.

以钻架模型为实例，研究了其ODS测试方法试验模态，识别其模态参数，分析其测试结果。

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Use lots of padding - foam pipe cladding from a DIY shop is perfect for protecting your frame and very cheap.

使用大量填充物——DIY商店里的泡沫管覆盖膜是保护自行车车身的绝佳物，而且非常便宜。

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The pipe racks are moved to and from their stored position by a hydraulic cylinder attached between the mast frame and the lower swing arm.

管架是通过一个装在支架框和下摇动臂之间的液压缸往返于其贮存位置的。

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The towers were "built as a pipe, " with the steel frame of its exterior facade supporting the buildings, he told CNN.

CNN: Debate begins on rebuilding towers