单词	鐵路傾斜升降之度數
释义	同Gradient
随便看	certification modify date/time certification number certification of conformity certification of fitness certification of librarians certification of proof certification of quality management system certification of quality system certification of retirement of ship master certification of ship master taking over command certification of teachers certification of weight certification path certification pilot certification policy certification practice statement certification practice statement {=cps} certification report certification request certification required certification revocation certifications certification scheme certification suspension certification system