Bit gauges, rings of defined circumference, are slipped around drill bits to detect and measure wear, which reduces the circumference of the bit during drilling.
Both waist circumference and waist-to-hip ratio provide a measure of central obesity.
腰围值和腰臀比值是测量中心型肥胖的方法。
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Wrist circumference was calculated using a cloth tape measure, and 51 of the children also underwent imaging tests to precisely measure wrist bone vs. wrist fat.