The dimension of the UFO was 6 feet high, 15 feet in diameter.
UFO的尺寸是高6英尺，直径15英尺。
This author has found the most suitable characteristic dimension to be the equivalent passage diameter.
这个作者发现了更恰当的特性作为当量通道直径。
The dimension of shaped spinneret was designed and calculated by equivalent diameter analysis.
采用当量直径法对异形喷丝板的尺寸进行设计、计算。
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