To evaluate the grade of lumbosacral stability, shape analysis was conducted on plain radiographs of the lumbar spine.

目的：评价腰骶关节的稳定性，在腰椎平片上行形态分析。

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The karst geological condition, the design and construction, and the settlement observation result of the low-grade plain concrete pile composite foundation for the Longgang Culture Center in Shenzh.

介绍了深圳市龙岗文化中心的岩溶地质条件、复合地基设计和施工情况；沉降观测结果表明，在岩溶地区使用素混凝土桩复合地基技术是可行的。

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Our company is production and sales of various specifications, low-grade chemical fiber fabric, plain fabric fabric surface.

我公司是以生产销售各规格中、低档化纤坯布，纯面坯布面料。

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