a length of

基本解释

It does not limit that list to a length of less than four items.
它没有将该列表的长度限制为少于四个项目。
In 1988, China built its first expressway, between Shanghai and Jiading, with a length of 18.5 km.
1988年，长度为18.5公里的上海至嘉定高速公路成为中国第一条高速公路。
www.chinadaily.com.cn
Vibrations from the four strings are transmitted via the bridge to the front of the violin, and on to the back via the sound-post, a length of round wood wedged between front and back inside the box.
四根琴弦的振动通过琴马传送到小提琴的面板，并在通过声柱传回声音回背板，声柱是音箱中一段嵌在面板和背板之间的圆木。

But Dr.Brown says fingertips are not often reattached if they are the length of a fingernail or shorter.
It's - a suture or a stitch has to hold the wound closed so it has to have certain mechanical strength and imagine the problem of making something that's dissolvable so it disappears but also is strong enough to hold a wound closed reliably for a length of time.
能够拉紧切口的缝合线,就必须具有一定的机械张力,大家想像一下制造这种缝合线的难度,身体组织不仅要能吸收这种缝合线,而且这种线必须有足够的张力,一定时间内能够拉紧切口
耶鲁公开课 - 生物医学工程探索课程节选
You can use it to describe or to ask questions about distance, about a length of something.
你可以用它来询问路程或者东西的长度。
How long课堂 - SpeakingMax英语口语达人

The Japanese custom thus celebrates a relationship with the human, not a length of steel.
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