The bending radius reduces with increasing length of the mainstream line, and then tends to be relatively stable.

 
  • 隨主流線(xiàn)長(cháng)度增加,彎曲半徑不會(huì )無(wú)限制減小,將會(huì )趨于某一相對穩定狀態(tài);
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan