[机] spheroidal cementite, spheroidite, spheroidized cementite

qiú zhuàng xuě míng tàn tiě ㄑㄧㄡˊ ㄓㄨㄤˋ ㄒㄩㄝˇ ㄇㄧㄥˊ ㄊㄢˋ ㄊㄧㄝˇ