llibretto
发表于 2025-3-23 12:48:09
Introduction,. So even if readers find themselves offered more than one path to follow, they should have confidence that each of these paths can lead to a valid result. Indeed, this kind of duplication was considered an instructive feature of the earlier Laser Workshop Courses on which this book is based.
柱廊
发表于 2025-3-23 16:01:33
Laser beam geometry and its applications,uld still be 1 mm wide thousands of miles away’. In fact, nothing could be further from the truth. A laser beam has a finite size which changes as it propagates, and a proper understanding of these changes is needed in order to use such a beam successfully in alignment applications (Williams 1983).
Contracture
发表于 2025-3-23 21:47:44
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金丝雀
发表于 2025-3-24 01:05:50
Television holography and its applications,raphy’. The name TV holography (Ellingsrud and Løkberg, 1989) will be used throughout this chapter. It highlights the real-time operating mode of the technique and also serves as a reminder of its holographic roots.
infinite
发表于 2025-3-24 05:37:32
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招人嫉妒
发表于 2025-3-24 09:19:04
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monogamy
发表于 2025-3-24 10:47:19
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membrane
发表于 2025-3-24 17:47:06
Laser beam geometry and its applications,f the large particle accelerators at CERN in Geneva, tensioned nylon threads and laser beams are both used in different circumstances. In a magazine for computer users, an article outlining the functioning of laser printers has stated that ‘if the ray of light leaving the laser was 1 mm wide, it wo
愉快吗
发表于 2025-3-24 22:48:44
Alignment metrology,oblems. The reason is that the table itself provides a flat reference . and any . across the table provides a straight reference line (Fig. 3.1). 90° lines which are . to the plane or line are provided by L-type or box squares or cylindrical squares. Dial test indicators, height gauges, gauge blocks
Occlusion
发表于 2025-3-25 02:51:26
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