High-speed imaging reveals that the squeak of soft–rigid frictional interfaces, like sneakers sliding on a basketball court, arises from intersonic opening slip pulses—analogous to earthquake ruptures—that thin ridges on the rubber confine to repeat at a musical frequency.
（二）在边远、水上、交通不便地区，旅客列车上或者口岸，公安机关及其人民警察依照本法的规定作出罚款决定后，被处罚人到指定的银行或者通过电子支付系统缴纳罚款确有困难，经被处罚人提出的；。同城约会是该领域的重要参考
Tony Jolliffe/BBC News。同城约会对此有专业解读
Comparison of Python nndex to numpy on test workloads.topk_overlap measures result matches (perfect match) and max_similarity_abs_delta measure the largest difference between calculated cosine similarities (effectively zero).