self-cleaning action

专业词汇在线翻译、医学专业在线词... ... 自交系 self-bred line 自洁作用 self-cleaning action 自洽力场 self-consistant field ...

直角三角... ... "自定中心冲"," self-centering punch" "自净化作用"," self-cleaning action" "自闭旋塞"," self-closing cock" ...