短語(yǔ)詞組短語(yǔ)real contact area ratio 實(shí)體接觸面積比contact -ratio model 接觸電阻模型contact t ratio 重合度contact gear ratio [機(jī)]接觸齒輪比contact loss ratio 離線率contact surface ratio 接觸面積率bone contact surface ratio 種植體overlap contact ratio 縱向重合度;向重合度gear contact ratio 齒輪接觸比 返回 contact ratio