单词	concave curve
释义	concave curve 凹曲线
随便看	thalliumiorthoarsenate thallium i orthoarsenate thalliumioxalate thallium i oxalate thalliumioxide thallium i oxide thalliumipalmitate thallium i palmitate thalliumiperchlorate thallium i perchlorate thalliumiperrhenate thallium i perrhenate thalliumiphosphate thallium i phosphate thalliumipicrate thallium i picrate thalliumipyrophosphate thallium i pyrophosphate thalliumipyrovanadate thallium i pyrovanadate thallium iridium alum thalliumiselenate thallium i selenate thalliumiselenide thallium i selenide