目的本实验旨在从周期抗屈试验方面证实磷酸钙骨水泥对椎弓根螺钉固定的强化作用。
Objective To determine if calcium phosphate cement can enhance vertebral pedicle screw fixation in the osteoporotic spine through periodical anti-bending test.
有机质不仅直接丰富了高产农田的磷库，而且通过提高磷酸化酶的活性，降低土壤磷的吸附、固定，促进解吸，增加了土壤磷的有效性。
This is because that organic matter enriched not only phosphorous in the high yield soil, but also increased soil phosphorous availability through decreasing absorption and fixation.
从热力学和动力学角度分析了用不同形态的无机离子交换剂磷酸钛作为气固色谱固定相的分离机理。
Bsed on the standpoint of thermodynamics and kinetics, the separation mechanism for titanium phosphate under different states on the gas-sdid Chromatographic pakings is investigated.
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