本文从理论上分析了产生干涉条纹及干涉条纹疏密粗细变化的原因。
The reason of the phenomenon and variation of the stripe in theory are analyzed.
推杆间隙排气用于排气量不大或者开设排气塞会与推出机构产生干涉的部位。
Clearance of ejector pin is used to vent little quantity air or the part may intervene with vent plug and ejector pin.
通过滴水的龙头，扬声器或镭射来产生波！增加第二来源或者两条缝，可以产生干涉形式。
Make waves with a dripping faucet, audio speaker, or laser! Add a second source or a pair of slits to create an interference pattern.
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