通过三坐标测量机的测量系统可以测出零件测点在() ["X方向上的精确坐标","Y方向上的精确坐标","Z方向上的精确坐标","X,Y,Z,三个方向上的精确坐标"]
下图是XJM-S16型浮选机示意图 请问图中4表示() ["A、搅拌机构","B、稳流板","C、定子导向板","D、中矿箱"]
桥梁高程控制点由基本水准点组成,基本水准点即为桥梁施工高程放样之用,也为()使用。
涵洞圬工保护层有风化剥落露筋时,应进行()修补和表面喷射水泥砂装等办法处理。
杠杆千分尺的分度值有()两种 ["0.001,0.002mm","0.002,0.004mm","0.004,0.008mm","0.01,0.02mm"]
()是为了顶进桥涵而设置的临时建筑物。