到20世纪90年代中期，人们看到了干涉型光纤陀螺仪的高精度发展潜力，开始了精密级光纤陀螺仪及其系统技术的研究工作。
Until 90s of 20 century, people found the high precision potentials of IFOG and started the research and development of precision-grade FOG and its system technology.
多波束测深仪是高精度、高效率的地形测绘设备，适合大面积的扫海测量作业，是21世纪水下地形测量必不可少的测绘仪器。
Multi-Beam Echo Sounder is an absolutely necessary seafloor mapping device with high accuracy and high efficient at 21st century. It is much fitted to sweep mapping for wide area.
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