专门配置的旁轴气道，能满足气体保护焊和冷却工件的要求。
Special configuration, can satisfy the airway by axial gas shielded welding workpiece and cooling.
推导并证明了旁轴波动方程的解与复源点方法之间的一致性关系。
The derivation of the relationship between the paraxial wave equation and the complex source points is given and proved.
对复杂光学系统证明了光线矩阵元表达的衍射积分是旁轴波动方程的准确解。
It is proved in a complicated optical system that the diffraction integration in terms of ray matrix element is the right solution 'for paraxial equation.
在旁轴相机上成为标准35mm焦距，因为旁轴相机的测距器可达的最长焦距是135mm（感谢freecloud）。
Became a standard 35mm focal length when rangefinders were the main camera type because it's the longest focal length that is feasible on a rangefinder.
结论随着眼轴长度的增加，旁中心凹视网膜变薄，中心凹的最小RT及中心凹区的平均RT没有变化。
Conclusions As the AL of eye increases, the RT at the parafovea decreases, while the minimum and the average RT at the fovea remain unchanged.
于左心长轴观、心尖或胸骨旁四腔观以及反流束横断面方位显示偏心性反流束的整体形态，评价二尖瓣的反流程度。
Its stereoscopic shape was observed in long views, the apical and parasternal four chamber views of left ventriculum and its regurgitant extent were estimated.
于左心长轴观、心尖或胸骨旁四腔观以及反流束横断面方位显示偏心性反流束的整体形态，评价二尖瓣的反流程度。
Its stereoscopic shape was observed in long views, the apical and parasternal four chamber views of left ventriculum and its regurgitant extent were estimated.
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