To install the crane span before installation, camber, level of metal structure of main girder bending, trolley rail height difference, gauge deviation, diagonal bridge survey.
安装前要对起重机安装跨度，金属结构主梁的拱度、水平旁弯，小车轨道高低差、轨距偏差，桥架对角线等进行测量。
BMI, the ratio of weight in kilograms to the square of height in metres, is a common, if imperfect, gauge of whether someone is over- or underweight.
体重指数，是指体重（以千克为单位计）与身高（以米为单位计）平方之比。即使有缺点，这一指标也仍是被最普遍采用的检测一个人是否超重的指标。
Familiar with the machining of various measurements with inspection tools, including micrometer, dial indicator, height gauge, etc...
熟悉机加工用的各种测量检具，包括千分尺，百分表，高度规等。
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