抽取高强度纤维细丝时可用激光�控其粗细如图所示观察激光束经过细丝时在光屏上所产生的条纹即可判断细丝粗细的变化.则 A.这主要是光的衍涉 Template




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tomski抽取高强度纤维细丝时可用激光�控其粗细如图所示观察激光束经过细丝时在光屏上所产生的条纹即可判断细丝粗细的变化.则 a.这主要是光的衍涉 coloring