v make fine adjustments or divide into marked intervals for optimal measuring
v mark (the scale of a measuring instrument) so that it can be read in the desired units
v measure the caliber of
n. 校准( calibrate的名词复数 ); 使标准化; 使合标准; 测量（枪的）口径
v. 校准( calibrate的第三人称单数 ); 使标准化; 使合标准; 测量（枪的）口径