| 摘要 |
<p>A measurement tool 10 comprises a first leg 12, a second leg 14 pivotally connected to the first leg 12, and a scale 22 associate with the first leg 12, wherein the scale 22 provides, in conjunction with the relative positions of the legs 12, 14, information relating to the value of a parameter of a pipe section and/or elevator.</p> |
