3533:2021 - Sex toys — Design and safety requirements for products in directcontact with genitalia, the anus, or both. iso.org. [2021-12-30]. (原始内容存档于2021-12-23)
EmbarrassingProblems.com (页面存档备份,存于互联网档案馆): Crabs Genetic Analysis of Lice Supports DirectContact between Modern and Archaic Humans Pthirus pubis. ITIS.
measurement) 巴克豪森效應測試(Barkhausen testing) 直流電勢下降測量(英语:Direct current potential drop measurement)(DCPD,Direct current potential drop measurement) 渦電流檢測(ECT,Eddy-current