射线照相的几何条件是影响照相质量的重要因素。
Geometrical conditions are important factors influencing the quality of photos by radioactive rays.
着重讨论了热中子照相探伤的灵敏度和影响灵敏度及热中子照相质量的有关因素。
Emphasis is put on the discussion about the sensitivity of thermal neutron radiography in defect detecting test and those factors which affect the sensitivity and the quality of the images.
当这个反光镜进行照相操作时，遮光板同步闭合，使来自镜头的眩光被遮挡，保证照相质量。
When the reflector takes photos, the shading plate can be synchronously closed, so that glare from a lens can be blocked and the photographic quality can be ensured.
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