您要查找的是不是：
- 单J形坡口single-J groove
- 双面J形坡口double-J groove
- 单面J形坡口single-J groove
- j形袋J Shaped Pocket
- 双面U形坡口double U-groove
- J形钩J-hook headgear
- J形导管J-stent
- 双面坡口接头double groove joint
- J形J-shaped
- j形箱j box
- 双面Ｕ型坡口[化] double U-groove
- J形曲线J-shaped curve
- J形手杖J-line cane
- 背面坡口underside groove
- J形天线J-antenna
- 坡口机beveling machine
- J形结肠袋colic J pouch
- 硬J形导丝stiff J-guide wire
- 不开坡口square groove
- 反J形分布reverse J-distribution
