primary X-ray

For the fluorescent X-ray tubes, several spectral distributions of different directions of primary X-ray beam must be determined and then the mean values of these data are calculated in order to obtain the effective spectral distributions.

对荧光X射线管还应测定几个射线束方向的原级谱加以平均求得有效原级谱。

The calculation method of primary wave and second wave speed were studied when the oil saturation and effective pressure of unconsolidated sandstone reservoir with high porosity in X Oilfield changed.

研究了X油田高孔低胶结砂岩储层在含油饱和度和压力变化时纵、横波速度计算方法，并将计算数据与实际测井资料进行了对比。

Objective: To investigate the clinical feature, pathogenesis, and therapy of Primary systemic amyloidosis with acquired factor-X deficiency.

目的：探讨原发性系统性淀粉样变性并发凝血因子X缺乏的临床特征、发病机制及治疗方法。

We adopt the partial shield lead cell, so that the primary X-ray outside the useful beam decreases to about 10~ (-4).

在对南京大学20Mev电子直线加速器实验室设计中：1.采用了局部铅屏蔽室，使有用束外的初级x线减弱至10~（-4）左右。

Conclusion: The mechanism of factor-X deficiency with primary amyloidosis was known as that the factor-X directly bind to amyloid fibrils and deposit in tissue.

结论：目前认为原发性系统性淀粉样变性并发凝血因子X缺乏的机制是淀粉样纤维与X因子特异性结合沉积在组织中形成的。

Below are invited representatives of parents of pre-primary classes XXX X children's mother to speak!

下面有请家长代表学前X班XXX小朋友的妈妈发言！

A case of primary hepatic amyloidosis with factor X deficiency

肝淀粉样变性合并凝血因子X缺乏1例