Thankfully the symbols they use are (mostly) universal, so once you've learned what each represents (as we explain below) you shouldn't have any problems no matter what you find in your laundry basket ...

Department of Materials Science and Engineering and Centre for Functional Photonics (CFP), City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong S.A.R. 999077, People’s Republic of China ...