an instrument used by surveyors

The no staff and self-reducing tacheometer is a new type of surveying instrument designed and constructed by a group of teachers and students of our department.

无须跑尺自计视距仪是一种新式的测量仪器，经过研究，我们已初步试制成功。

The gyroscopic surveying instrument USES a gyroscope, compass card, plumb Bob, and modified movie camera.

陀螺测量仪由陀螺仪、罗盘、铅锤以及经过改造的电影摄像机等组成。

It thanks to invent the electron leveling that leveling surveying realized digitalization and automation, which is a technological revolution in leveling surveying instrument history.

电子水準仪的出现，使水準测量实现了自动化、数字化，是水準测量仪器发展史上的一次技术革命。

This paper expounds the designing main points of multifunction surveying instrument verifying place and introduces the functions and characteristics, with practical work.

文章结合实际工作，主要阐述了多功能测量仪器检定场的设计要点，也对其功能特点作了介绍。

A portable surveying instrument consisting essentially of a drawing board and a ruler mounted on a tripod and used to sight and map topographical details.

一种便携式观测仪器，主要包括安放在三脚架上的绘图板和一把直尺，用于观测和绘制地形详图。

In this paper, impedance matching between LPF and surveying instrument is discussed and the design method is presented.

本文将对滤波器与测量仪器之间的阻抗匹配问题加以讨论，提出匹配衰减器的设计方法。

In this paper, we introduce a mirror smoothness surveying instrument which is designed from the principle of mirror Moire topography.

本文介绍一种以作者提出的掠射式镜面莫尔轮廓法的原理为依据而设计的镜面平整度测试仪。

The principle, structure, measuring method, measuring accuracy of HD-1 type surveying instrument and its applications in the mines were presented in this article.

文中简要介绍了HD - 1型巷道断面仪的结构原理、测量方法、所能达到的精度及其在矿山生产中的应用领域。