您要查找的是不是：
- 單J形坡口single-J groove
- 雙面J形坡口double-J groove
- 單面J形坡口single-J groove
- j形袋J Shaped Pocket
- 雙面U形坡口double U-groove
- J形鉤J-hook headgear
- J形導管J-stent
- 雙面坡口接頭double groove joint
- J形J-shaped
- j形箱j box
- 雙面Ｕ型坡口[化] double U-groove
- J形曲線(xiàn)J-shaped curve
- J形手杖J-line cane
- 背面坡口underside groove
- J形天線(xiàn)J-antenna
- 坡口機beveling machine
- J形結腸袋colic J pouch
- 硬J形導絲stiff J-guide wire
- 不開(kāi)坡口square groove
- 反J形分布reverse J-distribution
