An ancient unit of linear measure, originally equal to the length of the forearm from the tip of the middle finger to the elbow, or about17to22inches(43to56centimeters.

 
  • 肘尺古代的一种长度测量单位,以前等于从中指指尖到肘的前臂长度,或约等于17至22英寸(43至56厘米)
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