求翻译：通过游标卡尺或者千分表测量埋设在结构缝或者裂缝两端的机械曲臂基点间距离的变化量，从而可以测得结构缝或者裂缝的位移，用来监测混凝土结构缝或者其他刚性建筑物裂缝的变化情况。是什么意思？

Measured by vernier caliper or micrometer buried in the structure of joints or cracks at both ends of the distance between the mechanical crank the change point, which can measure the displacement of structural joints or cracks, joints or concrete structures used to monitor other changes in the rigi

Through vernier caliper or 1000 meter measurements were planted in both ends of the structural joints or cracks between mechanical elbow points away from Volume changes in the structural cracks, which can be measured, and used to monitor the magnitude of the displacement or cracks concrete structure

Through Vernier caliper or dial gauge survey embedment in structural joint or crack both sides mechanical crank basic point distance change quantity, thus may obtain the structural joint or the crack displacement, uses for to monitor the concrete structural joint or other rigid building crack change

By laying structural joints or cracks or dial Vernier caliper measurement at each end of the mechanical arm basis point distance between the magnitude of change, which can be measured displacement of structural joints or cracks, to monitoring of concrete structural joint of rigid building cracks or

By laying structural joints or cracks or dial Vernier caliper measurement at each end of the mechanical arm basis point distance between the magnitude of change, which can be measured displacement of structural joints or cracks, to monitoring of concrete structural joint of rigid building cracks or