skin-focus distance

A bamboo screen wraps the building in a second skin; placed at right angles to the wall and some distance apart, the lengths of bamboo lend the fa ç ade an intriguing visual effect.

竹幕作为第二表皮，竹片与外墙成直角并相互成一定距离放置，竹节长度不一使得立面具有精彩的视觉效果。

Methods The distance between skin and gluteus maximus of 524 cases were measured by B-mode ultrasonic.

方法以臀大肌注射为研究对象，通过B超观察524例皮肤到臀大肌之间的距离，以确定针头进入的深度。

A rectangle skin was resected at a distance of 5.0 to 6.0 mm from the eponychium, with care taken to leave the underlying subcutaneous vascular network intact.

其中一期手术5例，二期手术1例。在距甲根皮缘约5.0～6.0mm处，去除一块矩形皮肤，勿损伤皮下血管网。

A rectangle skin was resected at a distance of 0.5 to 0.6 cm from the eponychium, and protected the subcutaneous vascular network intact. It was 0.2~ 0.3 cm high and as wide as the nail. Then U shape flap was delicately slid proximally and sutured.

在距甲根皮缘0.5～0.6cm处，去除一块矩形皮肤，勿损伤皮下血管网，其高度0.2～0.3cm，宽度与甲相等，将〃U〃形皮瓣向近端柔和推剥并缝合。

Conclusions Ultrasound technique is a effective mean both for diagnosing the congenital imperforate anus and for choosing operative mode by measuring the distance between the end of rectum and the skin of anus

结论B超能准确诊断先天性肛门闭锁，并能测量直肠盲端与皮肤间的距离，为手术方式的选择提供可靠依据