Certainly, the patents describing the JM process and related material assume thatthe PGM particulates have a large enough diameter that they will essentially settleunder gravity.

 
  • 當然,專(zhuān)利描述過(guò)程和相關(guān)材料JM假設 這個(gè)PGM微粒有足夠大的直徑,他們根本解決 在重力。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan