Nonloss storage experiments were performed to a cryogenic vessel filled with liquid nitrogen, and a multivariate linearity regression analysis and check to the experimental data was also done.
对一低温容器利用液氮为介质进行了多次无损贮存实验，利用多元线性回归方法对实验数据进行分析和检验。
Cryogenic high-pressure vessel wound by flat metal strip with a liquid nitrogen precooling jacket is a new fashion adiabatic equipment, which consists of inter vessel and outer vessel.
扁平绕带式低温高压容器是一种新型低温液体贮存设备，由内外两层容器组成，内筒体的外壁焊有液氮预冷夹套。
Conclusion: the typical animal subsiding model of avascular necrosis of the femoral head can be established with blood vessel destroy and liquid nitrogen freezing.
结论：液氮冷冻并血管破坏可建立典型的犬股骨头缺血性坏死塌陷模型。
Conclusion: the typical animal subsiding model of avascular necrosis of the femoral head can be established with blood vessel destroy and liquid nitrogen freezing.
结论：液氮冷冻并血管破坏可建立典型的犬股骨头缺血性坏死塌陷模型。
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