Objective To evaluate the clinical application and effect of cryodesiccation amniotic membrane transplantation combined with lamellar keratoplasty on Mooren s ulcer.

目的观察冷冻干燥羊膜移植联合板层角膜移植在蚕蚀性角膜溃疡中的临床应用及效果。

Aimed at the problem of lamellar tearing in the welding of bakie, generating cause of lamellar tearing was analyzed from the product structure and welding procedure etc.

针对中间包焊接时产生层状撕裂问题,从产品结构、焊接工艺等方面分析了层状撕裂的原因,并制定相应的工艺措施,避免了层状撕裂的产生。

Because the distribution of molecular director was not affected by lamellar decorating after quench, chemical etching and SEM technique were used to reveal disclination and director patterns.

由于样品淬火后晶片装饰在织构上而不影响分子取向矢的分布,因而可以用化学刻蚀和电镜技术揭示其向错和取向矢图。