一般来说，喷涂底漆多选用大口径喷枪，喷涂中间涂层时选用中口径喷枪，喷涂面漆时多选用小口径喷枪。
In general, more choice of large caliber gun spraying paint, spraying coating used in intermediate caliber gun, small caliber gun with spray paint.
叙述一种用于测试大口径、长焦距光学系统杂光系数、渐晕系数、像面照度均匀性等光学参数的检测方法。
A method is introduced for testing stray light coefficient, vignetting coefficient and image surface uniformity optical system with large aperture and long focal length.
大口径望远镜主镜的面形精度是影响望远镜成像质量的关键因素之一。
The surface figure precision of the primary mirror in a large aperture telescope is a key factor influencing the imaging quality.
针对红外成像光学系统校正，研制了大口径热管面源黑体炉。
A blackbody furnace of heat-pipe surface source with large aperture was developed for the calibration of infrared image optical systems.
用切块法实测了某大口径X70双面直缝埋弧焊管内的残余应力。
The residual stress in a heavy caliber X70 double-surface straight-seam submerged arc tube was measured using the piece-cutting method.
大口径光学组件面形检测系统中，激光光斑的分割、质心提取和背表面光斑的自动剔除算法关系到系统的检测精度。
In the large optical components topography measurement system, the accuracy of measurement is greatly related to laser spot segmentation, centroid extraction and back surface spot removal.
大口径光学组件面形检测系统中，激光光斑的分割、质心提取和背表面光斑的自动剔除算法关系到系统的检测精度。
In the large optical components topography measurement system, the accuracy of measurement is greatly related to laser spot segmentation, centroid extraction and back surface spot removal.
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