浇斗瞬间接种法

[机] instantaneous ladle inoculation

jiāo doù shùn jiān jiē zhòng fǎ ㄐㄧㄠ ㄉㄡˋ ㄕㄨㄣˋ ㄐㄧㄢ ㄐㄧㄝ ㄓㄨㄥˋ ㄈㄚˇ