单词	linking rule
释义	linking rule 连结规则
随便看	threefold integration threefold law three-fold method threefoldness three-fold outstanding student threefold property three fold purchase three-fold purpose threefold quality threefold quantity threefold representation three fold representation three-fold restriction method threefold ring threefold rotatory inverter threefold rotor threefolds threefold states three-fold statically indeterminate three-fold structure threefold symmetry three fold symmetry axis three-fold symmetry axis threefold synthesis design method three fold tackle