孔径计

The diameter of the tree trunk was measured to be three feet.
这棵树干的直径被测量为三英尺。
The engineer calculated the diameter of the pipe needed for optimal water flow.
工程师计算了实现最佳水流所需的管道直径。
The diameter of the moon is much smaller than that of the earth.
月球的直径比地球小得多。
The diameter of this circle is exactly 10 centimeters.
这个圆的直径正好是10厘米。
The diameter of the asteroid was estimated at around 100 meters.
该小行星的直径估计约为100米。
The diameter of the wheel determines how far the bike will travel with each rotation.
车轮的直径决定了自行车每旋转一次能行进的距离。
The ancient column still standing had a diameter of over two meters.
那根依然屹立的古柱直径超过两米。
The diameter of the pupil changes depending on the amount of light entering the eye.
瞳孔的直径根据进入眼睛的光线量而变化。
The diameter of the basketball hoop is 45.72 centimeters.
篮球框的直径是45.72厘米。
Scientists measured the diameter of the comet's nucleus as it passed near Earth.
科学家在彗星靠近地球时测量了其核的直径。