spirit level

two-axis electrolytic bubble level

双轴电解气泡水准仪

Spirit levels on the gyro may be used to determine whether the instrument has settled with a list.

陀螺上的气泡水准仪可用以确定仪表的放置是否倾斜。

detachable bubble horizon sextant

可卸式气泡水准六分仪

bubble quadrant

带汽泡水准的扇形测角仪

gas chromatograph for analyzing single bubble in glass

分析玻璃中小气泡用的气相色谱仪

Several methods of reducing air-bubbles and water-bubbles on the surface of concrete

减少混凝土表面气泡水泡的几种方法

To measure the different elevations of(a tract of land)with a level.

测量水平用水准仪对（土地）做水准测量

"At the place of installation, level the balance using the leveling feet so that the air bubble is centered within the circle of the level indicator ."

在电子天平使用地点调整地脚螺栓的高度,使水平仪内的空气泡正好位于圆环的中央。

Numerical simulation of production processes of aluminum foams using air injection and melt stir

熔体吹气发泡法制备泡沫铝的准三维数值模拟

mason's lever (gradienter)

泥瓦工用水准器（测斜仪）

Nitrogen Bubble Type Water Level Gauge and Design of Monitoring Software System;

氮气气泡式水位计及监测软件的设计

Application analysis of low-yield wells foan drainge gas prodution technology

低产气井泡沫排水采气技术应用分析

velocity type column air gauge

流速式水柱气动量仪

soil permeability meter

土壤透水透气度测定仪

Research on Bubble Measuring Machine and Bubble Measurement

发泡量测量机及水中气泡测量关键技术研究

Project Design of Monitoring System of Defoaming Effect for Foaming Drainage Gas Recovery

泡沫排水采气消泡效果监测系统方案设计

Technology of form drainage gas in high salinity formation

产高矿化度地层水气井泡沫排水采气技术

DATA COMMUNICATION OF LEICA DNA SERIES DIGITAL LEVLES VIA RS232 SERIAL INTERFACE AND LEVELING SURVEY INTEGRATION SYSTEM

徕卡DNA水准仪串口通信及水准测量一体化系统