river-crossing leveling

常见例句

Long distance river-crossing leveling is an important job in the elevation control of the long-span bridge construction.
针对特大跨径桥梁高索塔施工中精密高程传递要求，阐述了四种竖向高程传递的方法及作业措施。
Long distance river-crossing leveling is an important job in the elevation control of the long-span bridge construction.
长距离跨河水准测量是特大跨径桥梁建设中高程控制的一项重要内容。
This paper introduced the field selection, field planning, vane production, observation methods, and record format of river-crossing leveling in detail.
详细介绍了光学测微法跨江水准测量方法、场地选择、场地布设、砚板制作、观测方法、记录格式等内容。