In the clinical laboratory test, 72 cases had positive MP-IgM and 12.2% had positive MP-IgM with cold agglutination ≥ 1 ∶ 32. Conclusions: The clinical features and X-ray photograms of MP infection lack specificity. 实验室检查中72例血MP-IgM阳性,冷凝集试验≥1∶32阳性率12.2%。
Development of the laser system for precision instrument marking points in aerial photograms 精密航片刺点仪激光系统的研制
Shear strength and fracture photograms of SnAgCu/ Cu and SnAgCu/ Au/ Ni/ Cu surface mounted soldered joints stored at high temperature were investigated. 研究了SnAgCu/Cu及SnAgCu/Au/Ni/Cu表面贴装元件焊点在高温存贮试验条件下抗剪强度的变化规律。