1.
take a sight with a compass/quadrant
用罗盘[象限仪]观测.
2.
A sight on a quadrant or compass.
照准器象限仪或罗盘上的准星
3.
Digital Quadrant Based on MEMS Accelerometer
基于MEMS加速度传感器的数字式象限仪
4.
"The earliest instrument for determining latitude was the quadrant, which measured the altitude of the polestar or the noonday sun."
早期测定纬度的仪器是象限仪,测量北极星或正午太阳的高度。
5.
Sophisticated instruments which were to make possible the European voyages of discovery, such as the astrolabe, the quadrant, and good navigational maps, were also developed by Muslims.
复杂的仪器使得欧洲人得以进行海上探险,例如星盘、象限仪及好的航海图都是由穆斯林所发明的。
6.
bearing compasses
方位罗盘，象限罗盘仪
7.
visibility meter (mete or meteorological instruments)
能见度测定仪（气象仪器）
8.
Shanghai Jiachuang Scientific Instrument Co., Ltd.
上海加创科仪有限公司
9.
IFR terminal minimums
仪表飞行天气终点极限
10.
"Automated Instruments Co., Ltd."
自动化仪器有限公司
11.
Electrical & Marine Instruments Co.Ltd.
电子航海仪器有限公司
12.
Fischer Instrumentation (Far East) Limited
测试仪器(远东)有限公司
13.
Hua Yue Enterprises Co.
华粤行仪器有限公司
14.
single range (measuring) instrument
单范围[量限] （测量）仪表
15.
photo cell control plastic flow limit instrument
光电管控制塑液限流仪
16.
medical infrared thermography unit
医用红外线热象图仪
17.
monochrome kinescope parameter tester
黑白显象管参数测试仪
18.
wind direction indicator (meteorological instruments)
风向指示器（气象仪器）