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。
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。
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